Quantum Sensing

We are pursuing a broad program of basic physics and quantum sensing applications with solid-state spin qubits, specifically the nitrogen vacancy (NV) color center in diamond. The NV center is a quantum defect with both electronic and nuclear spin, exhibiting long spin coherence times under ambient conditions. The NV is a single photon emitter, and its spin state can be optically prepared and read-out with good fidelity. NVs can be created within diamond at both high and low density, as well as within a few nanometers of the diamond surface. Diamond is a robust, biocompatible material that can be fabricated into a wide variety of shapes, from nanoscale structures to macroscopic crystals. NV-diamond is now a leading modality for sensing of electromagnetic fields and temperature with high spatial and spectral resolution.

Check out this video from Nature on The quantum world of diamonds!

NV-Diamond Magnetometry

We and our collaborators pioneered the use of NV-diamond for precision magnetic sensing and imaging with high spatial and spectral resolution. We continue to advance the performance of NV-diamond magnetometry, and pursue diverse applications across the physical and life sciences. Some examples are condensed matter physics, geoscience, bioimaging, and NMR.

Lower left: Quantum diamond microscope (QDM) used for studies of paleo-magnetism in early Earth rocks and meteorites. Upper left: QDM map of magnetic fields in a rock from western Australia; zircon is >4 Gyrs old and may provide information on the early Earth’s geodynamo. Upper right: NV-diamond magnetic field map of the chiral structure of a skyrmion found in a magnetic multi-layer. Lower right: NV-diamond measurements of the spin chemical potential of magnons in a magnetic insulator.

Driven Quantum Matter

The control of complex quantum systems and the development of next-generation quantum devices forms one of the grand technological challenges of the 21st century. Surprisingly, the stabilization of such quantum systems can rise out of their own complexity, originating from exotic non-equilibrium phases or intrinsic disorder in the system. We are exploring driven, non-equilibrium quantum phases with the goal of predicting, optimizing, discovering, and applying new types of quantum matter.

We combined two complementary quantum control techniques — double quantum (DQ) coherence and spin bath driving (P1) — to extend the dephasing time (T2*) of an NV ensemble by a factor of 16x (left), thereby improving the broadband (DC) magnetic field sensitivity by a factor of 8x (right). This result corresponds to the longest T2* ever measured for any solid-state electronic spin ensemble at room temperature.

Publications

  • Low-Field J-Coupling Spectroscopy Measured with a Diamond Nitrogen Vacancy Spectrometer. Stephen J. DeVience, John W. Blanchard, Camille G. McDonnell, and Ronald L. Walsworth. arXiv:2610.24815 (2026). PDF
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    arXiv
  • Principles and Techniques for Agentic Research in Experimental Physics. Niko R. Reed, Declan M. Daly, Andrew J. Beling, Jordan D. Giandrea, Ronald L. Walsworth, John W. Blanchard, and Daniel Ang. arXiv:2610.17193 (2026). PDF
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    arXiv
  • Directional Dark Matter Detection and Beyond: Diamond as a Platform for Mineral Detectors. Daniel Ang, Chinmay Bharathulwar, Priyanshu Bhattacharya, Mason Camp, Anson Cook, Gavishta H. M. Liyanage, Maximilian Shen, Jiashen Tang, and Ronald L. Walsworth. In Mineral Detection of Neutrinos and Dark Matter 2026 Proceedings, pp. 38–43 (2026). PDF
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    arXiv
  • Eigenframe Synchronization in Disordered Driven Quantum Ensembles. Saipriya Satyajit, Zechuan Yin, Jner Tzern Oon, Katrijn Everaert, Smriti Bhalerao, John W. Blanchard, Christopher Jarzynski, and Ronald L. Walsworth. arXiv:2608.17026 (2026). PDF
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    arXiv
  • Spatially Resolving the Pre-Thermal Anatomy of a Driven Bosonic Fluid. Shantam Ravan, Aaron Müller, Johannes Cremer, Jonathan Curtis, Daniel Fernandez, Ronald Walsworth, Eugene Demler, and Amir Yacoby. arXiv:2608.11561 (2026). PDF
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    arXiv
  • Noise Suppression via Pulsed All-Optical Magnetometry with Nitrogen-Vacancy Ensembles. Xiechen Zheng, Jeyson Támara-Isaza, John W. Blanchard, and Ronald L. Walsworth. arXiv:2607.01615 (2026). PDF
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    arXiv
  • Direct Measurement of the Singlet Lifetime and Photoexcitation Behavior of the Boron Vacancy Center in Hexagonal Boron Nitride. Richard A. Escalante, Andrew J. Beling, Daniel G. Ang, Niko R. Reed, Justin J. Welter, John W. Blanchard, Cecilia Campos, Edwin Coronel, Klaus Krambrock, Alexandre S. Leal, Paras N. Prasad, and Ronald L. Walsworth. Advanced Optical Materials (2026). link PDF supplement
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    arXiv
  • Multi-scale reconstruction of single-ion damage tracks in diamond via nitrogen-vacancy centers. Daniel G. Ang, Jiashen Tang, Maximilian Shen, Michael Titze, Gavishta Liyanage, Jordan Chapman, Chinmay Bharathulwar, Andrew T. Gilpin, Tanguy Terlier, Edward S. Bielejec, Vsevolod Ivanov, and Ronald L. Walsworth. arXiv:2606.23621 (2026). PDF
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    arXiv
  • A nanoscale magnetic spectrum analyzer based on qubit dressed states. Jan Rueschkamp, Shantam Ravan, Daniel Fernandez, Nazar Delegan, F. Joseph Heremans, David D. Awschalom, Ronald L. Walsworth, Nikola Maksimovic, and Amir Yacoby. arXiv:2606.05426 (2026). PDF
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    arXiv
  • Demonstrating magnetic memory in iron-rhodium structures using a quantum diamond microscope. Kristine V. Ung, Gregory M. Stephen, Nicholas A. Blumenschein, Alexander J. Edwards, Samuel W. LaGasse, Steven P. Bennett, Aubrey T. Hanbicki, Ronald L. Walsworth, Adam L. Friedman, and Paul V. Petruzzi. arXiv:2606.03738 (2026). PDF
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    arXiv
  • High Resolution Temperature-Resolved Spectroscopy of the Nitrogen-Vacancy 1E Singlet State Ionization Energy. Kristine V. Ung, Connor A. Roncaioli, Ronald L. Walsworth, and Sean M. Blakley. physica status solidi (a) 223, e202500538 (2026). link PDF
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    arXiv
  • Beyond average Hamiltonian theory for quantum sensing. Jner Tzern Oon, Sebastian C. Carrasco, Connor A. Hart, George A. Witt, Vladimir S. Malinovsky, and Ronald Walsworth. Phys. Rev. Res. 8, 013222 (2026). link PDF
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    arXiv

  • All-optical photoluminescence response of nitrogen-vacancy ensembles in diamond at low magnetic fields. Xiechen Zheng, Jeyson Támara-Isaza, Zechuan Yin, Johannes Cremer, John W. Blanchard, Connor A. Hart, Michael Crescimanno, Paul V. Petruzzi, Matthew J. Turner, and Ronald L. Walsworth. Phys. Rev. Appl. 24, 064049 (2025). link PDF
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    arXiv
  • Characterization of low-nitrogen quantum diamond for pulsed magnetometry applications. Jiashen Tang, Connor A. Roncaioli, Andrew M. Edmonds, Atli Davidsson, Connor A. Hart, Matthew L. Markham, and Ronald L. Walsworth. Frontiers in Quantum Science and Technology Volume 4 - 2025 (2025). link PDF supplement
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    arXiv
  • High-resolution and wide-frequency-range magnetic spectroscopy with solid-state spin ensembles. Zechuan Yin, Justin J. Welter, Connor A. Hart, Paul V. Petruzzi, and Ronald L. Walsworth. npj Quantum Information 11 (2025). link PDF supplement
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    arXiv
  • 2025 Quantum Diamond Workshop Findings Report. Danielle A. Braje, Matthew L. Markham, Jennifer M. Schloss, Michael A. Slocum, and Ronald L. Walsworth. arXiv:2511.11791v1 (2025). PDF
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    arXiv
  • Impedance-Tuned Microwave Loop for Fast, Homogeneous Rabi Oscillations of a Dense Ensemble of NV-Diamond Electronic Spins. Han Sae Jung, Johannes Cremer, Aoyang Zhang, Shuhao Fan, Sangha Kim, Guang Yang, Ronald L. Walsworth, and Donhee Ham. Nano Letters 25, 15566-15571 (2025). link PDF supplement
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    arXiv
  • AC magnetometry in the strong drive regime with NV centers in diamond. Katrijn Everaert, Saipriya Satyajit, Jiashen Tang, Zechuan Yin, Xiechen Zheng, Jner Tzern Oon, Connor A. Hart, John W. Blanchard, and Ronald L. Walsworth. arXiv:2510.05471v1 (2025). PDF
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    arXiv
  • Progress Toward a Solid-State Directional Dark Matter Detector. Daniel Ang, Jiashen Tang, Maximilian Shen, Mason Camp, Andrew Gilpin, Gavishta Liyanage, and Ronald L. Walsworth. In Mineral Detection of Neutrinos and Dark Matter 2025 Proceedings, pp. 18–21 (2025). PDF
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    arXiv
  • Prospects for Ultralow-Mass Nuclear Magnetic Resonance using Spin Defects in Hexagonal Boron Nitride. Declan M. Daly, Niko R. Reed, Stephen J. DeVience, Zechuan Yin, Johannes Cremer, Andrew J. Beling, John W. Blanchard, and Ronald L. Walsworth. arXiv:2505.00383v1 (2025). PDF
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    arXiv
  • Design of a quantum diamond microscope with efficient scanning confocal readout. Daniel G. Ang, Jiashen Tang, and Ronald L. Walsworth. Academia Quantum 2 (2025). link PDF
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    arXiv
  • Machine learning for improved current-density reconstruction from two-dimensional vector magnetic images. Niko R. Reed, Danyal Bhutto, Matthew J. Turner, Declan M. Daly, Sean M. Oliver, Jiashen Tang, Kevin S. Olsson, Nicholas Langellier, Mark J.H. Ku, Matthew S. Rosen, and Ronald L. Walsworth. Phys. Rev. Appl. 23, 034035 (2025). link PDF
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    arXiv
  • TEMPO: A Python Package for Time Evolution of Pulse Sequences in QuTiP. Jner Tzern Oon, Sonja A. Hakala, George A. Witt, and Ronald Walsworth. arXiv:2502.11389v1 (2025). PDF
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    arXiv

  • Diamond micro-chip for quantum microscopy. Shahidul Asif, Hang Chen, Johannes Cremer, Shantam Ravan, Jeyson Támara-Isaza, Saurabh Lamsal, Reza Ebadi, Yan Li, Ling-Jie Zhou, Cui-Zu Chang, John Q. Xiao, Amir Yacoby, Ronald L. Walsworth, and Mark J. H. Ku. AVS Quantum Science 6, 044405 (2024). link PDF supplement
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    arXiv
  • All-in-one quantum diamond microscope for sensor characterization. Connor Roncaioli, Connor A. Hart, Ronald Walsworth, and Donald P. Fahey. AVS Quantum Science 6, 044403 (2024). link PDF supplement
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    arXiv
  • Quantum diamond microscope for narrowband magnetic imaging with high spatial and spectral resolution. Zechuan Yin, Jiashen Tang, Connor A. Hart, John W. Blanchard, Xinyan Xiang, Saipriya Satyajit, Smriti Bhalerao, Tao Tao, Stephen J. DeVience, and Ronald L. Walsworth. Phys. Rev. Appl. 22, 054050 (2024). link PDF
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    arXiv
  • Roadmap on nanoscale magnetic resonance imaging. Raffi Budakian, Amit Finkler, Alexander Eichler, Martino Poggio, Christian L Degen, Sahand Tabatabaei, Inhee Lee, P Chris Hammel, S Polzik Eugene, Tim H Taminiau, Ronald L Walsworth, Paz London, Ania Bleszynski Jayich, Ashok Ajoy, Arjun Pillai, Jörg Wrachtrup, Fedor Jelezko, Yujeong Bae, Andreas J Heinrich, Christian R Ast, Patrice Bertet, Paola Cappellaro, Cristian Bonato, Yoann Altmann, and Erik Gauger. Nanotechnology 35, 412001 (2024). link PDF
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    arXiv
  • Nutation-based longitudinal-sensing protocols for high-field NMR with nitrogen-vacancy centers in diamond. Declan Daly, Stephen J. DeVience, Emma Huckestein, John W. Blanchard, Johannes Cremer, and Ronald L. Walsworth. Phys. Rev. Appl. 22, 024043 (2024). link PDF
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    arXiv
  • Progress towards a solid-state directional dark matter detector. Daniel G. Ang, Xingxin Liu, Jiashen Tang, Maximilian Shen, Reza Ebadi, and Ronald L. Walsworth. In Mineral Detection of Neutrinos and Dark Matter 2024 Proceedings, pp. 18–21 (2024). PDF
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    arXiv

  • Quantum diamond microscope for dynamic imaging of magnetic fields. Jiashen Tang, Zechuan Yin, Connor A. Hart, John W. Blanchard, Jner Tzern Oon, Smriti Bhalerao, Jennifer M. Schloss, Matthew J. Turner, and Ronald L. Walsworth. AVS Quantum Science 5, 044403 (2023). link PDF
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    arXiv
  • Snowmass2021 cosmic frontier white paper: Ultraheavy particle dark matter. Daniel Carney, Nirmal Raj, Yang Bai, Joshua Berger, Carlos Blanco, Joseph Bramante, Christopher Cappiello, Maíra Dutra, Reza Ebadi, Kristi Engel, Edward Kolb, J. Patrick Harding, Jason Kumar, Gordan Krnjaic, Rafael F. Lang, Rebecca K. Leane, Benjamin V. Lehmann, Shengchao Li, Andrew J. Long, Gopolang Mohlabeng, Ibles Olcina, Elisa Pueschel, Nicholas L. Rodd, Carsten Rott, Dipan Sengupta, Bibhushan Shakya, Ronald L. Walsworth, and Shawn Westerdale. SciPost Phys. Core 6, 075 (2023). link PDF
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    arXiv
  • Quantum Logic Enhanced Sensing in Solid-State Spin Ensembles. Nithya Arunkumar, Kevin S. Olsson, Jner Tzern Oon, Connor A. Hart, Dominik B. Bucher, David R. Glenn, Mikhail D. Lukin, Hongkun Park, Donhee Ham, and Ronald L. Walsworth. Phys. Rev. Lett. 131, 100801 (2023). link PDF supplement
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    arXiv
  • Dressed-state control of effective dipolar interaction between strongly-coupled solid-state spins. Junghyun Lee, Mamiko Tatsuta, Andrew Xu, Erik Bauch, Mark J. H. Ku, and Ronald L. Walsworth. npj Quantum Information 9, 77 (2023). link PDF supplement
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    arXiv
  • Controllable tunability of a Chern number within the electronic-nuclear spin system in diamond. Junghyun Lee, Keigo Arai, Huiliang Zhang, Mark J. H. Ku, and Ronald L. Walsworth. npj Quantum Information 9, 66 (2023). link PDF supplement
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    arXiv
  • Quantum sensors for biomedical applications. Nabeel Aslam, Hengyun Zhou, Elana K. Urbach, Matthew J. Turner, Ronald L. Walsworth, Mikhail D. Lukin, and Hongkun Park. Nature Reviews Physics (2023). link PDF
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  • Directional detection of dark matter using solid-state quantum sensing. Reza Ebadi, Mason C. Marshall, David F. Phillips, Johannes Cremer, Tao Zhou, Michael Titze, Pauli Kehayias, Maziar Saleh Ziabari, Nazar Delegan, Surjeet Rajendran, Alexander O. Sushkov, F. Joseph Heremans, Edward S. Bielejec, Martin V. Holt, and Ronald L. Walsworth. AVS Quantum Science 4, 044701 (2022). link PDF
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    arXiv
  • Hardware Trojan Detection Using Unsupervised Deep Learning on Quantum Diamond Microscope Magnetic Field Images. Maitreyi Ashok, Matthew J. Turner, Ronald L. Walsworth, Edlyn V. Levine, and Anantha P. Chandrakasan. J. Emerg. Technol. Comput. Syst. 18 (2022). link PDF
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    arXiv
  • Ramsey envelope modulation in NV diamond magnetometry. Jner Tzern Oon, Jiashen Tang, Connor A. Hart, Kevin S. Olsson, Matthew J. Turner, Jennifer M. Schloss, and Ronald L. Walsworth. Phys. Rev. B 106, 054110 (2022). link PDF supplement
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    arXiv
  • Snowmass2021 Cosmic Frontier Dark Matter Direct Detection to the Neutrino Fog. D. S. Akerib, P. B. Cushman, C. E. Dahl, R. Ebadi, A. Fan, R. J. Gaitskell, C. Galbiati, G. K. Giovanetti, Graciela B. Gelmini, L. Grandi, S. J. Haselschwardt, C. M. Jackson, R. F. Lang, B. Loer, D. Loomba, M. C. Marshall, A. F. Mills, C. A. J. OHare, C. Savarese, J. Schueler, M. Szydagis, Volodymyr Takhistov, Tim M. P. Tait, Y. D. Tsai, S. E. Vahsen, R. L. Walsworth, and S. Westerdale. arXiv:2203.08084 (2022). link PDF
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    arXiv
  • High-Precision Mapping of Diamond Crystal Strain Using Quantum Interferometry. Mason C. Marshall, Reza Ebadi, Connor Hart, Matthew J. Turner, Mark J.H. Ku, David F. Phillips, and Ronald L. Walsworth. Phys. Rev. Applied 17, 024041 (2022). link PDF
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    arXiv
  • Multiplexed Sensing of Magnetic Field and Temperature in Real Time Using a Nitrogen-Vacancy Ensemble in Diamond. Jeong Hyun Shim, Seong-Joo Lee, Santosh Ghimire, Ju Il Hwang, Kwang-Geol Lee, Kiwoong Kim, Matthew J. Turner, Connor A. Hart, Ronald L. Walsworth, and Sangwon Oh. Phys. Rev. Applied 17, 014009 (2022). link PDF supplement
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    arXiv

  • Scanning X-Ray Diffraction Microscopy for Diamond Quantum Sensing. Mason C. Marshall, David F. Phillips, Matthew J. Turner, Mark J. H. Ku, Tao Zhou, Nazar Delegan, F. Joseph Heremans, Martin V. Holt, and Ronald L. Walsworth. Phys. Rev. Applied 16, 054032 (2021). link PDF supplement
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    arXiv
  • Vector Magnetic Current Imaging of an 8 nm Process Node Chip and 3D Current Distributions Using the Quantum Diamond Microscope. Sean M. Oliver, Dmitro J. Martynowych, Matthew J. Turne, David A. Hopper, Ronald L. Walswort, and Edlyn V. Levine. ISTFA 2021: Conference Proceedings from the 47th International Symposium for Testing and Failure Analysis, 96-107 (2021). link PDF
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    arXiv
  • Characterisation of CVD diamond with high concentrations of nitrogen for magnetic-field sensing applications. Andrew Mark Edmonds, Connor A Hart, Matthew J Turner, Pierre-Olivier Colard, Jennifer M Schloss, Kevin Olsson, Raisa Trubko, Matthew L Markham, Adam Rathmill, Ben Horne-Smith, Wilbur Lew, Arul Manickam, Scott Bruce, Peter G Kaup, Jon C Russo, Michael J DiMario, Joseph T South, Jay T Hansen, Daniel J Twitchen, and Ronald Walsworth. Materials for Quantum Technology 1, 025001 (2021). link PDF
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  • N–V–Diamond Magnetic Microscopy Using a Double Quantum 4-Ramsey Protocol. Connor A. Hart, Jennifer M. Schloss, Matthew J. Turner, Patrick J. Scheidegger, Erik Bauch, and Ronald L. Walsworth. Phys. Rev. Applied 15, 044020 (2021). link PDF supplement
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    arXiv
  • Directional detection of dark matter with diamond. Mason C Marshall, Matthew J Turner, Mark J H Ku, David F Phillips, and Ronald L Walsworth. Quantum Science and Technology 6, 024011 (2021). link PDF
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    arXiv
  • Development of Quantum Interconnects (QuICs) for Next-Generation Information Technologies. David Awschalom, Karl K. Berggren, Hannes Bernien, Sunil Bhave, Lincoln D. Carr, Paul Davids, Sophia E. Economou, Dirk Englund, Andrei Faraon, Martin Fejer, Saikat Guha, Martin V. Gustafsson, Evelyn Hu, Liang Jiang, Jungsang Kim, Boris Korzh, Prem Kumar, Paul G. Kwiat, Marko Lončar, Mikhail D. Lukin, David A.B. Miller, Christopher Monroe, Sae Woo Nam, Prineha Narang, Jason S. Orcutt, Michael G. Raymer, Amir H. Safavi-Naeini, Maria Spiropulu, Kartik Srinivasan, Shuo Sun, Jelena Vučković, Edo Waks, Ronald Walsworth, Andrew M. Weiner, and Zheshen Zhang. PRX Quantum 2, 017002 (2021). link PDF
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    arXiv
  • Micron-Scale NV-NMR Spectroscopy with Signal Amplification by Reversible Exchange. Nithya Arunkumar, Dominik B. Bucher, Matthew J. Turner, Patrick TomHon, David Glenn, Sören Lehmkuhl, Mikhail D. Lukin, Hongkun Park, Matthew S. Rosen, Thomas Theis, and Ronald L. Walsworth. PRX Quantum 2, 010305 (2021). link PDF
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    arXiv

  • Decoherence of ensembles of nitrogen-vacancy centers in diamond. Erik Bauch, Swati Singh, Junghyun Lee, Connor A. Hart, Jennifer M. Schloss, Matthew J. Turner, John F. Barry, Linh M. Pham, Nir Bar-Gill, Susanne F. Yelin, and Ronald L. Walsworth. Phys. Rev. B 102, 134210 (2020). link PDF
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    arXiv
  • Magnetic Field Fingerprinting of Integrated-Circuit Activity with a Quantum Diamond Microscope. Matthew J. Turner, Nicholas Langellier, Rachel Bainbridge, Dan Walters, Srujan Meesala, Thomas M. Babinec, Pauli Kehayias, Amir Yacoby, Evelyn Hu, Marko Lončar, Ronald L. Walsworth, and Edlyn V. Levine. Physical Review Applied 14, 014097 (2020). link PDF supplement
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    arXiv
  • Imaging viscous flow of the Dirac fluid in graphene. Mark J. H. Ku, Tony X. Zhou, Qing Li, Young J. Shin, Jing K. Shi, Claire Burch, Laurel E. Anderson, Andrew T. Pierce, Yonglong Xie, Assaf Hamo, Uri Vool, Huiliang Zhang, Francesco Casola, Takashi Taniguchi, Kenji Watanabe, Michael M. Fogler, Philip Kim, Amir Yacoby, and Ronald L. Walsworth. Nature 583, 537–541 (2020). link PDF supplement
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    arXiv
  • Microwave-Assisted Spectroscopy Technique for Studying Charge State in Nitrogen-Vacancy Ensembles in Diamond. D.P.L. Aude Craik, P. Kehayias, A.S. Greenspon, X. Zhang, M.J. Turner, J.M. Schloss, E. Bauch, C.A. Hart, E.L. Hu, and R.L. Walsworth. Physical Review Applied 14, 014009 (2020). link PDF
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    arXiv
  • Spin-torque oscillation in a magnetic insulator probed by a single-spin sensor. H. Zhang, M. J. H. Ku, F. Casola, C. H. R. Du, T. van der Sar, M. C. Onbasli, C. A. Ross, Y. Tserkovnyak, A. Yacoby, and R. L. Walsworth. Physical Review B 102, 024404 (2020). link PDF
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    arXiv
  • Hyperpolarization-Enhanced NMR Spectroscopy with Femtomole Sensitivity Using Quantum Defects in Diamond. Dominik B. Bucher, David R. Glenn, Hongkun Park, Mikhail D. Lukin, and Ronald L. Walsworth. Physical Review X 10, 021053 (2020). link PDF supplement
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    arXiv
  • Micron-scale SABRE-enhanced NV-NMR Spectroscopy. Nithya Arunkumar, Dominik B. Bucher, Matthew J. Turner, Patrick TomHon, David Glenn, Soren Lehmkuhl, Mikhail D. Lukin, Hongkun Park, Matthew S. Rosen, Thomas Theis, and Ronald L. Walsworth. arXiv:2006.03910 (2020). PDF
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    arXiv
  • Generation of nitrogen-vacancy ensembles in diamond for quantum sensors: Optimization and scalability of CVD processes. Andrew M. Edmonds, Connor A. Hart, Matthew J. Turner, Pierre-Olivier Colard, Jennifer M. Schloss, Kevin Olsson, Raisa Trubko, Matthew L. Markham, Adam Rathmill, Ben Horne-Smith, Wilbur Lew, Arul Manickam, Scott Bruce, Peter G. Kaup, Jon C. Russo, Michael J. DiMario, Joseph T. South, Jay T. Hansen, Daniel J. Twitchen, and Ronald L. Walsworth. arXiv:2004.01746 [cond-mat, physics:quant-ph] (2020). PDF
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    arXiv
  • Sensitivity optimization for NV-diamond magnetometry. John F. Barry, Jennifer M. Schloss, Erik Bauch, Matthew J. Turner, Connor A. Hart, Linh M. Pham, and Ronald L. Walsworth. Reviews of Modern Physics 92, 015004 (2020). link PDF
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    arXiv

  • Imaging crystal stress in diamond using ensembles of nitrogen-vacancy centers. P. Kehayias, M. J. Turner, R. Trubko, J. M. Schloss, C. A. Hart, M. Wesson, D. R. Glenn, and R. L. Walsworth. Physical Review B 100, 174103 (2019). link PDF supplement
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    arXiv
  • Principles and techniques of the quantum diamond microscope. Edlyn V. Levine, Matthew J. Turner, Pauli Kehayias, Connor A. Hart, Nicholas Langellier, Raisa Trubko, David R. Glenn, Roger R. Fu, and Ronald L. Walsworth. Nanophotonics 8, 1945–1973 (2019). link PDF
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  • Quantum diamond spectrometer for nanoscale NMR and ESR spectroscopy. Dominik B. Bucher, Diana P. L. Aude Craik, Mikael P. Backlund, Matthew J. Turner, Oren Ben Dor, David R. Glenn, and Ronald L. Walsworth. Nature Protocols 14, 2707–2747 (2019). link PDF
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    arXiv
  • Improved Quantum Sensing with a Single Solid-State Spin via Spin-to-Charge Conversion. J.-C. Jaskula, B.J. Shields, E. Bauch, M.D. Lukin, A.S. Trifonov, and R.L. Walsworth. Physical Review Applied 11, 064003 (2019). link PDF
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    arXiv
  • Decoherence of dipolar spin ensembles in diamond. Erik Bauch, Swati Singh, Junghyun Lee, Connor A. Hart, Jennifer M. Schloss, Matthew J. Turner, John F. Barry, Linh Pham, Nir Bar-Gill, Susanne F. Yelin, and Ronald L. Walsworth. arXiv:1904.08763 [physics, physics:quant-ph] (2019). PDF
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    arXiv

  • Geometric phase magnetometry using a solid-state spin. K. Arai, J. Lee, C. Belthangady, D. R. Glenn, H. Zhang, and R. L. Walsworth. Nature Communications 9, 4996 (2018). link PDF
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  • Simultaneous Broadband Vector Magnetometry Using Solid-State Spins. Jennifer M. Schloss, John F. Barry, Matthew J. Turner, and Ronald L. Walsworth. Physical Review Applied 10, 034044 (2018). link PDF supplement
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    arXiv
  • Ultralong Dephasing Times in Solid-State Spin Ensembles via Quantum Control. Erik Bauch, Connor A. Hart, Jennifer M. Schloss, Matthew J. Turner, John F. Barry, Pauli Kehayias, Swati Singh, and Ronald L. Walsworth. Physical Review X 8, 031025 (2018). link PDF supplement
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  • Magnetostatic twists in room-temperature skyrmions explored by nitrogen-vacancy center spin texture reconstruction. Y. Dovzhenko, F. Casola, S. Schlotter, T. X. Zhou, F. Büttner, R. L. Walsworth, G. S. D. Beach, and A. Yacoby. Nature Communications 9, 2712 (2018). link PDF supplement
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  • Fundamental Precision Bounds for Three-Dimensional Optical Localization Microscopy with Poisson Statistics. Mikael P. Backlund, Yoav Shechtman, and Ronald L. Walsworth. Physical Review Letters 121, 023904 (2018). link PDF supplement
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    arXiv
  • Light, the universe and everything – 12 Herculean tasks for quantum cowboys and black diamond skiers. Girish Agarwal, Roland E. Allen, Iva Bezděková, Robert W. Boyd, Goong Chen, Ronald Hanson, Dean L. Hawthorne, Philip Hemmer, Moochan B. Kim, Olga Kocharovskaya, David M. Lee, Sebastian K. Lidström, Suzy Lidström, Harald Losert, Helmut Maier, John W. Neuberger, Miles J. Padgett, Mark Raizen, Surjeet Rajendran, Ernst Rasel, Wolfgang P. Schleich, Marlan O. Scully, Gavriil Shchedrin, Gennady Shvets, Alexei V. Sokolov, Anatoly Svidzinsky, Ronald L. Walsworth, Rainer Weiss, Frank Wilczek, Alan E. Willner, Eli Yablonovitch, and Nikolay Zheludev. Journal of Modern Optics 65, 1261–1308 (2018). link
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  • Sensing Coherent Dynamics of Electronic Spin Clusters in Solids. E.L. Rosenfeld, L.M. Pham, M.D. Lukin, and R.L. Walsworth. Physical Review Letters 120, 243604 (2018). link PDF supplement
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    arXiv
  • Secondary magnetic inclusions in detrital zircons from the Jack Hills, Western Australia, and implications for the origin of the geodynamo. Benjamin P. Weiss, Roger R. Fu, Joshua F. Einsle, David R. Glenn, Pauli Kehayias, Elizabeth A. Bell, Jeff Gelb, Jefferson F. D. F. Araujo, Eduardo A. Lima, Caue S. Borlina, Patrick Boehnke, Duncan N. Johnstone, T. Mark Harrison, Richard J. Harrison, and Ronald L. Walsworth. Geology 46, 427–430 (2018). link PDF
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  • High-resolution magnetic resonance spectroscopy using a solid-state spin sensor. David R. Glenn, Dominik B. Bucher, Junghyun Lee, Mikhail D. Lukin, Hongkun Park, and Ronald L. Walsworth. Nature 555, 351–354 (2018). link PDF supplement
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  • Mapping the microscale origins of magnetic resonance image contrast with subcellular diamond magnetometry. Hunter C. Davis, Pradeep Ramesh, Aadyot Bhatnagar, Audrey Lee-Gosselin, John F. Barry, David R. Glenn, Ronald L. Walsworth, and Mikhail G. Shapiro. Nature Communications 9, 131 (2018). link PDF
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    arXiv
  • Bright nanowire single photon source based on SiV centers in diamond. L. Marseglia, K. Saha, A. Ajoy, T. Schröder, D. Englund, F. Jelezko, R. Walsworth, J. L. Pacheco, D. L. Perry, E. S. Bielejec, and P. Cappellaro. Optics Express 26, 80–89 (2018). link PDF
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    arXiv
  • Probing condensed matter physics with magnetometry based on nitrogen-vacancy centres in diamond. Francesco Casola, Toeno van der Sar, and Amir Yacoby. Nature Reviews Materials 3, 1–13 (2018). link PDF
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    arXiv

  • Diamond-Based Magnetic Imaging with Fourier Optical Processing. Mikael P. Backlund, Pauli Kehayias, and Ronald L. Walsworth. Physical Review Applied 8, 054003 (2017). link PDF
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    arXiv
  • A method for directional detection of dark matter using spectroscopy of crystal defects. Surjeet Rajendran, Nicholas Zobrist, Alexander O. Sushkov, Ronald Walsworth, and Mikhail Lukin. Physical Review D 96, 035009 (2017). link PDF
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    arXiv
  • Selective addressing of solid-state spins at the nanoscale via magnetic resonance frequency encoding. H. Zhang, K. Arai, C. Belthangady, J.-C. Jaskula, and R. L. Walsworth. npj Quantum Information 3, 1–8 (2017). link PDF supplement
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  • Micrometer-scale magnetic imaging of geological samples using a quantum diamond microscope. D. R. Glenn, R. R. Fu, P. Kehayias, D. Le Sage, E. A. Lima, B. P. Weiss, and R. L. Walsworth. Geochemistry, Geophysics, Geosystems 18, 3254–3267 (2017). link PDF
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    arXiv
  • Control and local measurement of the spin chemical potential in a magnetic insulator. Chunhui Du, Toeno van der Sar, Tony X. Zhou, Pramey Upadhyaya, Francesco Casola, Huiliang Zhang, Mehmet C. Onbasli, Caroline A. Ross, Ronald L. Walsworth, Yaroslav Tserkovnyak, and Amir Yacoby. Science 357, 195–198 (2017). link PDF supplement
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    arXiv
  • Efficiency of Cathodoluminescence Emission by Nitrogen-Vacancy Color Centers in Nanodiamonds. Huiliang Zhang, David R. Glenn, Richard Schalek, Jeff W. Lichtman, and Ronald L. Walsworth. Small 13, 1700543 (2017). link PDF supplement
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  • Superresolution optical magnetic imaging and spectroscopy using individual electronic spins in diamond. Jean-Christophe Jaskula, Erik Bauch, Silvia Arroyo-Camejo, Mikhail D. Lukin, Stefan W. Hell, Alexei S. Trifonov, and Ronald L. Walsworth. Optics Express 25, 11048–11064 (2017). link PDF
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    arXiv
  • Nanodiamond-enhanced MRI via in situ hyperpolarization. David E. J. Waddington, Mathieu Sarracanie, Huiliang Zhang, Najat Salameh, David R. Glenn, Ewa Rej, Torsten Gaebel, Thomas Boele, Ronald L. Walsworth, David J. Reilly, and Matthew S. Rosen. Nature Communications 8, 15118 (2017). link PDF supplement
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  • Evaluating the paleomagnetic potential of single zircon crystals using the Bishop Tuff. Roger R. Fu, Benjamin P. Weiss, Eduardo A. Lima, Pauli Kehayias, Jefferson F. D. F. Araujo, David R. Glenn, Jeff Gelb, Joshua F. Einsle, Ann M. Bauer, Richard J. Harrison, Guleed A. H. Ali, and Ronald L. Walsworth. Earth and Planetary Science Letters 458, 1–13 (2017). link PDF
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    arXiv

  • Optical magnetic detection of single-neuron action potentials using quantum defects in diamond. John F. Barry, Matthew J. Turner, Jennifer M. Schloss, David R. Glenn, Yuyu Song, Mikhail D. Lukin, Hongkun Park, and Ronald L. Walsworth. Proceedings of the National Academy of Sciences 113, 14133–14138 (2016). link PDF supplement
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    arXiv
  • Nuclear magnetic resonance detection and spectroscopy of single proteins using quantum logic. I. Lovchinsky, A. O. Sushkov, E. Urbach, N. P. de Leon, S. Choi, K. De Greve, R. Evans, R. Gertner, E. Bersin, C. Müller, L. McGuinness, F. Jelezko, R. L. Walsworth, H. Park, and M. D. Lukin. Science 351, 836–841 (2016). link PDF supplement
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  • NMR technique for determining the depth of shallow nitrogen-vacancy centers in diamond. Linh M. Pham, Stephen J. DeVience, Francesco Casola, Igor Lovchinsky, Alexander O. Sushkov, Eric Bersin, Junghyun Lee, Elana Urbach, Paola Cappellaro, Hongkun Park, Amir Yacoby, Mikhail Lukin, and Ronald L. Walsworth. Physical Review B 93, 045425 (2016). link PDF
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    arXiv
  • Probing scalar coupling differences via long-lived singlet states. Stephen J. DeVience, Ronald L. Walsworth, and Matthew S. Rosen. Journal of Magnetic Resonance 262, 42–49 (2016). link PDF supplement
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    arXiv

  • Fourier magnetic imaging with nanoscale resolution and compressed sensing speed-up using electronic spins in diamond. K. Arai, C. Belthangady, H. Zhang, N. Bar-Gill, S. J. DeVience, P. Cappellaro, A. Yacoby, and R. L. Walsworth. Nature Nanotechnology 10, 859–864 (2015). link PDF supplement
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    arXiv
  • Optimizing a dynamical decoupling protocol for solid-state electronic spin ensembles in diamond. D. Farfurnik, A. Jarmola, L. M. Pham, Z. H. Wang, V. V. Dobrovitski, R. L. Walsworth, D. Budker, and N. Bar-Gill. Physical Review B 92, 060301 (2015). link PDF supplement
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    arXiv
  • Nanometre-scale probing of spin waves using single electron spins. Toeno van der Sar, Francesco Casola, Ronald Walsworth, and Amir Yacoby. Nature Communications 6, 7886 (2015). link PDF supplement
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    arXiv
  • Single-cell magnetic imaging using a quantum diamond microscope. David R. Glenn, Kyungheon Lee, Hongkun Park, Ralph Weissleder, Amir Yacoby, Mikhail D. Lukin, Hakho Lee, Ronald L. Walsworth, and Colin B. Connolly. Nature Methods 12, 736–738 (2015). link PDF supplement
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  • Nanoscale NMR spectroscopy and imaging of multiple nuclear species. Stephen J. DeVience, Linh M. Pham, Igor Lovchinsky, Alexander O. Sushkov, Nir Bar-Gill, Chinmay Belthangady, Francesco Casola, Madeleine Corbett, Huiliang Zhang, Mikhail Lukin, Hongkun Park, Amir Yacoby, and Ronald L. Walsworth. Nature Nanotechnology 10, 129–134 (2015). link PDF supplement
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    arXiv
  • Decoherence imaging of spin ensembles using a scanning single-electron spin in diamond. Lan Luan, Michael S. Grinolds, Sungkun Hong, Patrick Maletinsky, Ronald L. Walsworth, and Amir Yacoby. Scientific Reports 5, 8119 (2015). link PDF
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  • A genetic strategy for probing the functional diversity of magnetosome formation. Lilah Rahn-Lee, Meghan E. Byrne, Manjing Zhang, David Le Sage, David R. Glenn, Timothy Milbourne, Ronald L. Walsworth, Hojatollah Vali, and Arash Komeili. PLoS genetics 11, e1004811 (2015). link PDF
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  • Atomic-Scale Nuclear Spin Imaging Using Quantum-Assisted Sensors in Diamond. A. Ajoy, U. Bissbort, M.D. Lukin, R.L. Walsworth, and P. Cappellaro. Physical Review X 5, 011001 (2015). link PDF
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    arXiv

  • All-Optical Sensing of a Single-Molecule Electron Spin. A. O. Sushkov, N. Chisholm, I. Lovchinsky, M. Kubo, P. K. Lo, S. D. Bennett, D. Hunger, A. Akimov, R. L. Walsworth, H. Park, and M. D. Lukin. Nano Letters 14, 6443–6448 (2014). link PDF supplement
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    arXiv
  • Magnetic Resonance Detection of Individual Proton Spins Using Quantum Reporters. A.O. Sushkov, I. Lovchinsky, N. Chisholm, R.L. Walsworth, H. Park, and M.D. Lukin. Physical Review Letters 113, 197601 (2014). link PDF
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  • Silicon-Vacancy Color Centers in Nanodiamonds: Cathodoluminescence Imaging Markers in the Near Infrared. Huiliang Zhang, Igor Aharonovich, David R. Glenn, Richard Schalek, Andrew P. Magyar, Jeff W. Lichtman, Evelyn L. Hu, and Ronald L. Walsworth. Small 10, 1908–1913 (2014). link PDF
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  • Subnanometre resolution in three-dimensional magnetic resonance imaging of individual dark spins. M. S. Grinolds, M. Warner, K. De Greve, Y. Dovzhenko, L. Thiel, R. L. Walsworth, S. Hong, P. Maletinsky, and A. Yacoby. Nature Nanotechnology 9, 279–284 (2014). link PDF
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    arXiv

  • Preparation of Nuclear Spin Singlet States Using Spin-Lock Induced Crossing. Stephen J. DeVience, Ronald L. Walsworth, and Matthew S. Rosen. Physical Review Letters 111, 173002 (2013). link PDF
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    arXiv
  • Nuclear spin singlet states as a contrast mechanism for NMR spectroscopy. Stephen J. DeVience, Ronald L. Walsworth, and Matthew S. Rosen. NMR in Biomedicine 26, 1204–1212 (2013). link PDF
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  • Solid-state electronic spin coherence time approaching one second. N. Bar-Gill, L. M. Pham, A. Jarmola, D. Budker, and R. L. Walsworth. Nature Communications 4, 1743 (2013). link PDF
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    arXiv
  • Dressed-State Resonant Coupling between Bright and Dark Spins in Diamond. C. Belthangady, N. Bar-Gill, L. M. Pham, K. Arai, D. Le Sage, P. Cappellaro, and R. L. Walsworth. Physical Review Letters 110, 157601 (2013). link PDF
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  • Optical magnetic imaging of living cells. D. Le Sage, K. Arai, D. R. Glenn, S. J. DeVience, L. M. Pham, L. Rahn-Lee, M. D. Lukin, A. Yacoby, A. Komeili, and R. L. Walsworth. Nature 496, 486–489 (2013). link PDF
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  • Nanoscale magnetic imaging of a single electron spin under ambient conditions. M. S. Grinolds, S. Hong, P. Maletinsky, L. Luan, M. D. Lukin, R. L. Walsworth, and A. Yacoby. Nature Physics 9, 215–219 (2013). link PDF supplement
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    arXiv
  • Nanoscale magnetometry with NV centers in diamond. Sungkun Hong, Michael S. Grinolds, Linh M. Pham, David Le Sage, Lan Luan, Ronald L. Walsworth, and Amir Yacoby. MRS Bulletin 38, 155–161 (2013). link PDF
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  • Correlative light and electron microscopy using cathodoluminescence from nanoparticles with distinguishable colours. D. R. Glenn, H. Zhang, N. Kasthuri, R. Schalek, P. K. Lo, A. S. Trifonov, H. Park, J. W. Lichtman, and R. L. Walsworth. Scientific Reports 2, 865 (2012). link PDF supplement
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  • Enhanced metrology using preferential orientation of nitrogen-vacancy centers in diamond. L. M. Pham, N. Bar-Gill, D. Le Sage, C. Belthangady, A. Stacey, M. Markham, D. J. Twitchen, M. D. Lukin, and R. L. Walsworth. Physical Review B 86, 121202 (2012). link PDF supplement
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    arXiv
  • Coherent, Mechanical Control of a Single Electronic Spin. Sungkun Hong, Michael S. Grinolds, Patrick Maletinsky, Ronald L. Walsworth, Mikhail D. Lukin, and Amir Yacoby. Nano Letters 12, 3920–3924 (2012). link PDF
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    arXiv
  • Enhanced solid-state multispin metrology using dynamical decoupling. L. M. Pham, N. Bar-Gill, C. Belthangady, D. Le Sage, P. Cappellaro, M. D. Lukin, A. Yacoby, and R. L. Walsworth. Physical Review B 86, 045214 (2012). link PDF
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    arXiv
  • Anti-reflection coating for nitrogen-vacancy optical measurements in diamond. T. K. Yeung, D. Le Sage, L. M. Pham, P. L. Stanwix, and R. L. Walsworth. Applied Physics Letters 100, 251111 (2012). link PDF
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  • Suppression of spin-bath dynamics for improved coherence of multi-spin-qubit systems. N. Bar-Gill, L. M. Pham, C. Belthangady, D. Le Sage, P. Cappellaro, J. R. Maze, M. D. Lukin, A. Yacoby, and R. Walsworth. Nature Communications 3, 858 (2012). link PDF
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  • A robust scanning diamond sensor for nanoscale imaging with single nitrogen-vacancy centres. P. Maletinsky, S. Hong, M. S. Grinolds, B. Hausmann, M. D. Lukin, R. L. Walsworth, M. Loncar, and A. Yacoby. Nature Nanotechnology 7, 320–324 (2012). link PDF
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    arXiv
  • Efficient photon detection from color centers in a diamond optical waveguide. D. Le Sage, L. M. Pham, N. Bar-Gill, C. Belthangady, M. D. Lukin, A. Yacoby, and R. L. Walsworth. Physical Review B 85, 121202 (2012). link PDF supplement
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    arXiv

  • Quantum control of proximal spins using nanoscale magnetic resonance imaging. M. S. Grinolds, P. Maletinsky, S. Hong, M. D. Lukin, R. L. Walsworth, and A. Yacoby. Nature Physics 7, 687–692 (2011). link PDF supplement
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    arXiv
  • Magnetic field imaging with nitrogen-vacancy ensembles. L. M. Pham, D. Le Sage, P. L. Stanwix, T. K. Yeung, D. Glenn, A. Trifonov, P. Cappellaro, P. R. Hemmer, M. D. Lukin, H. Park, A. Yacoby, and R. L. Walsworth. New Journal of Physics 13, 045021 (2011). link PDF
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    arXiv

  • Coherence of nitrogen-vacancy electronic spin ensembles in diamond. P. L. Stanwix, L. M. Pham, J. R. Maze, D. Le Sage, T. K. Yeung, P. Cappellaro, P. R. Hemmer, A. Yacoby, M. D. Lukin, and R. L. Walsworth. Physical Review B 82, 201201 (2010). link PDF
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    arXiv
  • Far-field optical imaging and manipulation of individual spins with nanoscale resolution. P. C. Maurer, J. R. Maze, P. L. Stanwix, L. Jiang, A. V. Gorshkov, A. A. Zibrov, B. Harke, J. S. Hodges, A. S. Zibrov, A. Yacoby, D. Twitchen, S. W. Hell, R. L. Walsworth, and M. D. Lukin. Nature Physics 6, 912–918 (2010). link PDF
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  • Repetitive Readout of a Single Electronic Spin via Quantum Logic with Nuclear Spin Ancillae. L. Jiang, J. S. Hodges, J. R. Maze, P. Maurer, J. M. Taylor, D. G. Cory, P. R. Hemmer, R. L. Walsworth, A. Yacoby, A. S. Zibrov, and M. D. Lukin. Science 326, 267–272 (2009). link PDF
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  • Nanoscale magnetic sensing with an individual electronic spin in diamond. J. R. Maze, P. L. Stanwix, J. S. Hodges, S. Hong, J. M. Taylor, P. Cappellaro, L. Jiang, M. V. Gurudev Dutt, E. Togan, A. S. Zibrov, A. Yacoby, R. L. Walsworth, and M. D. Lukin. Nature 455, 644–647 (2008). link PDF
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  • High-sensitivity diamond magnetometer with nanoscale resolution. J. M. Taylor, P. Cappellaro, L. Childress, L. Jiang, D. Budker, P. R. Hemmer, A. Yacoby, R. Walsworth, and M. D. Lukin. Nature Physics 4, 810–816 (2008). link PDF
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    arXiv