Johannes Cremer

Postdoctoral Fellow

Ph.D. Physical Chemistry, Swiss Federal Institute of Technology, 2019
M.S. Interdisciplinary Sciences, Swiss Federal Institute of Technology, 2012
B.S. Interdisciplinary Sciences, Swiss Federal Institute of Technology, 2011

Johannes’ research focuses on nanoscale spin imaging in diamond and NV spin diffusion measurements.

jcremer@umd.edu

Fun Fact: Johannes loves horseback riding and sailing!

Publications

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
BibTeX
@article{Ravan2026, sort_date = {2026-08-12}, sort_date_type = {arxiv-submitted}, title = {Spatially Resolving the Pre-Thermal Anatomy of a Driven Bosonic Fluid}, author = {Shantam Ravan and Aaron Müller and Johannes Cremer and Jonathan Curtis and Daniel Fernandez and Ronald Walsworth and Eugene Demler and Amir Yacoby}, journal = {arXiv:2608.11561}, year = {2026}, month = {August}, eprint = {2608.11561}, archiveprefix = {arXiv}, primaryclass = {cond-mat.mes-hall}, url_link = {https://arxiv.org/abs/2608.11561}, url_pdf = {/files/2026/08/2608.11561v1.pdf}, keywords = {quantum-sensing} }

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
BibTeX
@article{ZHENG2025, sort_date = {2025-12-18}, sort_date_type = {journal-publication}, title = {All-optical photoluminescence response of nitrogen-vacancy ensembles in diamond at low magnetic fields}, author = {Zheng, Xiechen and T\'amara-Isaza, Jeyson and Yin, Zechuan and Cremer, Johannes and Blanchard, John W. and Hart, Connor A. and Crescimanno, Michael and Petruzzi, Paul V. and Turner, Matthew J. and Walsworth, Ronald L.}, journal = {Phys. Rev. Appl.}, volume = {24}, issue = {6}, pages = {064049}, numpages = {23}, year = {2025}, month = {Dec}, publisher = {American Physical Society}, doi = {10.1103/ls1d-r771}, day = {18}, url_link = {https://link.aps.org/doi/10.1103/ls1d-r771}, url_pdf = {/files/2025/12/2025_Zheng_PRApplied.pdf}, keywords = {quantum-sensing}, eprint = {2502.11943}, archiveprefix = {arXiv} }

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
BibTeX
@article{JUNG2025, sort_date = {2025-10-29}, sort_date_type = {journal-issue}, author = {Jung, Han Sae and Cremer, Johannes and Zhang, Aoyang and Fan, Shuhao and Kim, Sangha and Yang, Guang and Walsworth, Ronald L. and Ham, Donhee}, title = {Impedance-Tuned Microwave Loop for Fast, Homogeneous Rabi Oscillations of a Dense Ensemble of NV-Diamond Electronic Spins}, journal = {Nano Letters}, volume = {25}, number = {43}, pages = {15566-15571}, year = {2025}, month = {10}, day = {16}, doi = {10.1021/acs.nanolett.5c03811}, note = {PMID: 41099541}, url_link = {https://doi.org/10.1021/acs.nanolett.5c03811}, url_pdf = {/files/2025/11/2025_Jung_Nano-Letters.pdf}, url_supplement = {/files/2025/11/2025_Jung_Nano-Letters_SI.pdf}, keywords = {quantum-sensing, nmr-mri}, eprint = {2507.17689}, archiveprefix = {arXiv} }

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
BibTeX
@article{DALY2025, sort_date = {2025-05-01}, sort_date_type = {arxiv-submitted}, title = {Prospects for Ultralow-Mass Nuclear Magnetic Resonance using Spin Defects in Hexagonal Boron Nitride}, author = {Declan M. Daly and Niko R. Reed and Stephen J. DeVience and Zechuan Yin and Johannes Cremer and Andrew J. Beling and John W. Blanchard and Ronald L. Walsworth}, journal = {arXiv:2505.00383v1}, year = {2025}, month = {5}, day = {1}, eprint = {2505.00383}, archiveprefix = {arXiv}, primaryclass = {quant-ph}, url_link = {https://arxiv.org/abs/2505.00383}, url_pdf = {/files/2025/05/2505.00383v1.pdf}, keywords = {quantum-sensing, nmr-mri} }

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
BibTeX
@article{ASIF2024, sort_date = {2024-12}, sort_date_type = {journal-issue}, author = {Asif, Shahidul and Chen, Hang and Cremer, Johannes and Ravan, Shantam and T\'{a}mara-Isaza, Jeyson and Lamsal, Saurabh and Ebadi, Reza and Li, Yan and Zhou, Ling-Jie and Chang, Cui-Zu and Xiao, John Q. and Yacoby, Amir and Walsworth, Ronald L. and Ku, Mark J. H.}, title = {Diamond micro-chip for quantum microscopy}, journal = {AVS Quantum Science}, volume = {6}, number = {4}, pages = {044405}, year = {2024}, month = {12}, issn = {2639-0213}, doi = {10.1116/5.0223774}, url_link = {https://doi.org/10.1116/5.0223774}, url_pdf = {/files/2024/12/Diamond-Micro-Chip.pdf}, url_supplement = {/files/2024/12/DMC_SM_20240819_rev02_major.pdf}, keywords = {quantum-sensing}, eprint = {2403.10414}, archiveprefix = {arXiv} }

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
BibTeX
@article{Daly2024, sort_date = {2024-08-14}, sort_date_type = {journal-publication}, title = {Nutation-based longitudinal-sensing protocols for high-field NMR with nitrogen-vacancy centers in diamond}, author = {Daly, Declan and DeVience, Stephen J. and Huckestein, Emma and Blanchard, John W. and Cremer, Johannes and Walsworth, Ronald L.}, journal = {Phys. Rev. Appl.}, volume = {22}, issue = {2}, pages = {024043}, numpages = {11}, year = {2024}, month = {Aug}, publisher = {American Physical Society}, doi = {10.1103/PhysRevApplied.22.024043}, url_link = {https://link.aps.org/doi/10.1103/PhysRevApplied.22.024043}, url_pdf = {/files/2024/08/PhysRevApplied.22.024043.pdf}, keywords = {quantum-sensing, nmr-mri}, eprint = {2310.08499}, archiveprefix = {arXiv} }

arXiv

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
BibTeX
@article{Ebadi2022_AVS-Quantum, sort_date = {2022-12}, sort_date_type = {journal-issue}, author = {Ebadi,Reza and Marshall,Mason C. and Phillips,David F. and Cremer,Johannes and Zhou,Tao and Titze,Michael and Kehayias,Pauli and Saleh Ziabari,Maziar and Delegan,Nazar and Rajendran,Surjeet and Sushkov,Alexander O. and Heremans,F. Joseph and Bielejec,Edward S. and Holt,Martin V. and Walsworth,Ronald L. }, title = {Directional detection of dark matter using solid-state quantum sensing}, journal = {AVS Quantum Science}, volume = {4}, number = {4}, pages = {044701}, year = {2022}, month = {Nov}, comment = {11}, keywords = {quantum-sensing, fundamental-phys}, doi = {10.1116/5.0117301}, url_link = {https://avs.scitation.org/doi/10.1116/5.0117301}, url_pdf = {/files/2022/11/2022_Ebadi_AVS-Quantum.pdf}, eprint = {2203.06037}, archiveprefix = {arXiv} }

arXiv

Johannes Cremer

Publications

2026

2025

2024

2022