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Optically induced static magnetic field in ensemble of nitrogen-vacancy centers in diamond

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arxiv 2205.03010 v1 pith:HEP3BGSC submitted 2022-05-06 quant-ph

Optically induced static magnetic field in ensemble of nitrogen-vacancy centers in diamond

Farid Kalhor , Noah F. Opondo , Shoaib Mahmud , Leif Bauer , Li-Ping Yang , Sunil A. Bhave , Zubin Jacob This is my paper
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keywords magneticfieldinducedcentersspinstaticapplicationscoherent
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Generation of local magnetic field at the nanoscale is desired for many applications such as spin-qubit-based quantum memories. However, this is a challenge due to the slow decay of static magnetic fields. Here, we demonstrate photonic spin density (PSD) induced effective static magnetic field for an ensemble of nitrogen-vacancy (NV) centers in bulk diamond. This locally induced magnetic field is a result of coherent interaction between the optical excitation and the NV centers. We demonstrate an optically induced spin rotation on the Bloch sphere exceeding 10 degrees which has potential applications in all optical coherent control of spin qubits.

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