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| Auteurs principaux: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2601.18843 |
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| _version_ | 1866917224686551040 |
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| author | Omar, Muhib Benke, Magnus Zhang, Shaowen Zhang, Jixing Kuebler, Michael Sharbati, Pouya Rahimpour, Ara Gueck, Arno Kapitonova, Maryna Kadam, Devyani Geiser, Carlos Rene Izquierdo Haller, Jens Trautmann, Arno Jag-Lauber, Katharina Roelver, Robert Nguyen, Thanh-Duc Gizzi, Leonardo Schweizer, Michelle Abdelsayed, Mena Wickenbrock, Ingo Edmonds, Andrew M. Markham, Matthew Koss, Peter A. Schnell, Oliver Hofmann, Ulrich G. Ball, Tonio Beck, Juergen Budker, Dmitry Wrachtrup, Joerg Wickenbrock, Arne |
| author_facet | Omar, Muhib Benke, Magnus Zhang, Shaowen Zhang, Jixing Kuebler, Michael Sharbati, Pouya Rahimpour, Ara Gueck, Arno Kapitonova, Maryna Kadam, Devyani Geiser, Carlos Rene Izquierdo Haller, Jens Trautmann, Arno Jag-Lauber, Katharina Roelver, Robert Nguyen, Thanh-Duc Gizzi, Leonardo Schweizer, Michelle Abdelsayed, Mena Wickenbrock, Ingo Edmonds, Andrew M. Markham, Matthew Koss, Peter A. Schnell, Oliver Hofmann, Ulrich G. Ball, Tonio Beck, Juergen Budker, Dmitry Wrachtrup, Joerg Wickenbrock, Arne |
| contents | We demonstrate direct, non-invasive and non-contact detection of human cardiac magnetic signals using quantum sensors based on nitrogen-vacancy (NV) centers in diamond. Three configurations were employed recording magnetocardiography (MCG) signals in various shielded and unshielded environments. The signals were averaged over a few hundreds up to several thousands of heart beats to detect the MCG traces. The compact room-temperature NV sensors exhibit sensitivities of 6-26 pT/Hz^(1/2) with active sensing volumes below 0.5 mm^3, defining the performance level of the demonstrated MCG measurements. While the present signals are obtained by averaging, this performance already indicates a clear path toward single-shot MCG sensing. To move beyond shielded environments toward practical clinical use, strong noise suppression is required. To this end, we implement NV-based gradiometry and achieve efficient common-mode noise rejection, enabled by the intrinsically small sensing volume of NV sensors. Together, these multi-platform results obtained across diverse magnetic environments provide a solid foundation for translating quantum sensors into human medical diagnostics such as MCG and magnetoencephalography (MEG). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_18843 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Human Cardiac Measurements with Diamond Magnetometers Omar, Muhib Benke, Magnus Zhang, Shaowen Zhang, Jixing Kuebler, Michael Sharbati, Pouya Rahimpour, Ara Gueck, Arno Kapitonova, Maryna Kadam, Devyani Geiser, Carlos Rene Izquierdo Haller, Jens Trautmann, Arno Jag-Lauber, Katharina Roelver, Robert Nguyen, Thanh-Duc Gizzi, Leonardo Schweizer, Michelle Abdelsayed, Mena Wickenbrock, Ingo Edmonds, Andrew M. Markham, Matthew Koss, Peter A. Schnell, Oliver Hofmann, Ulrich G. Ball, Tonio Beck, Juergen Budker, Dmitry Wrachtrup, Joerg Wickenbrock, Arne Medical Physics Quantum Physics We demonstrate direct, non-invasive and non-contact detection of human cardiac magnetic signals using quantum sensors based on nitrogen-vacancy (NV) centers in diamond. Three configurations were employed recording magnetocardiography (MCG) signals in various shielded and unshielded environments. The signals were averaged over a few hundreds up to several thousands of heart beats to detect the MCG traces. The compact room-temperature NV sensors exhibit sensitivities of 6-26 pT/Hz^(1/2) with active sensing volumes below 0.5 mm^3, defining the performance level of the demonstrated MCG measurements. While the present signals are obtained by averaging, this performance already indicates a clear path toward single-shot MCG sensing. To move beyond shielded environments toward practical clinical use, strong noise suppression is required. To this end, we implement NV-based gradiometry and achieve efficient common-mode noise rejection, enabled by the intrinsically small sensing volume of NV sensors. Together, these multi-platform results obtained across diverse magnetic environments provide a solid foundation for translating quantum sensors into human medical diagnostics such as MCG and magnetoencephalography (MEG). |
| title | Human Cardiac Measurements with Diamond Magnetometers |
| topic | Medical Physics Quantum Physics |
| url | https://arxiv.org/abs/2601.18843 |