Electrical Readout of Spin Environments in Diamond for Quantum Sensing
- URL: http://arxiv.org/abs/2509.26570v1
- Date: Tue, 30 Sep 2025 17:33:03 GMT
- Title: Electrical Readout of Spin Environments in Diamond for Quantum Sensing
- Authors: Olga Rubinas, Michael Petrov, Emilie Bourgeois, Jaroslav Hruby, Akhil Kuriakose, Ottavia Jedrkiewicz, Milos Nesladek,
- Abstract summary: Nitrogen-vacancy centres in diamond are a key platform for quantum sensing and quantum information.<n>Here we demonstrate an all-electrical approach, photocurrent double electron-electron resonance (PC-DEER)<n>We resolve the signatures of substitutional nitrogen (P1) and NVH centers with reproducible contrast by using electrical signals.
- Score: 0.016324901313561745
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: 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.
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