Electrical Readout of Spin Environments in Diamond for Quantum Sensing
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866909816884035584 |
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| author | Rubinas, Olga Petrov, Michael Bourgeois, Emilie Hruby, Jaroslav Kuriakose, Akhil Jedrkiewicz, Ottavia Nesladek, Milos |
| author_facet | Rubinas, Olga Petrov, Michael Bourgeois, Emilie Hruby, Jaroslav Kuriakose, Akhil Jedrkiewicz, Ottavia Nesladek, Milos |
| contents | Nitrogen-vacancy (NV) centres in diamond are a key platform for quantum sensing and quantum information, combining long coherence times with controllable spin-spin interactions. Most of current quantum algorithms rely on optical access, which limit device integration and applicability in opaque or miniaturized settings. Here we demonstrate an all-electrical approach, photocurrent double electron-electron resonance (PC-DEER), permitting exploiting local dipolar interactions between individual NV spin qubits or ensembles and nearby paramagnetic defects with sub-confocal resolution. PC-DEER extends photocurrent NV readout from single-spin to spin-bath control and coherent manipulation, enabling characterization of bath-induced noise and effective deployment of noise-reduction protocols. We resolve the signatures of substitutional nitrogen (P1) and NVH centers with reproducible contrast by using electrical signals. Our results establish a scalable, optical-free spin readout strategy that bridges fundamental studies of spin environments with deployable quantum technologies, advancing the integration of diamond-based sensors into solid-state quantum devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_26570 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Electrical Readout of Spin Environments in Diamond for Quantum Sensing Rubinas, Olga Petrov, Michael Bourgeois, Emilie Hruby, Jaroslav Kuriakose, Akhil Jedrkiewicz, Ottavia Nesladek, Milos Quantum Physics Atomic Physics Nitrogen-vacancy (NV) centres in diamond are a key platform for quantum sensing and quantum information, combining long coherence times with controllable spin-spin interactions. Most of current quantum algorithms rely on optical access, which limit device integration and applicability in opaque or miniaturized settings. Here we demonstrate an all-electrical approach, photocurrent double electron-electron resonance (PC-DEER), permitting exploiting local dipolar interactions between individual NV spin qubits or ensembles and nearby paramagnetic defects with sub-confocal resolution. PC-DEER extends photocurrent NV readout from single-spin to spin-bath control and coherent manipulation, enabling characterization of bath-induced noise and effective deployment of noise-reduction protocols. We resolve the signatures of substitutional nitrogen (P1) and NVH centers with reproducible contrast by using electrical signals. Our results establish a scalable, optical-free spin readout strategy that bridges fundamental studies of spin environments with deployable quantum technologies, advancing the integration of diamond-based sensors into solid-state quantum devices. |
| title | Electrical Readout of Spin Environments in Diamond for Quantum Sensing |
| topic | Quantum Physics Atomic Physics |
| url | https://arxiv.org/abs/2509.26570 |