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

Generation of a local magnetic field at the nanoscale is desirable 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 a photonic spin density (PSD)-induced effective static magnetic field...

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Bibliographic Details
Published in:Optics letters 2022-07, Vol.47 (13), p.3347-3350
Main Authors: Kalhor, Farid, Opondo, Noah F., Mahmud, Shoaib, Bauer, Leif, Yang, Li-Ping, Bhave, Sunil A., Jacob, Zubin
Format: Article
Language:English
Subjects:
Decay rate
Diamonds
Magnetic fields
Nitrogen
Qubits (quantum computing)
Rotating spheres
Vacancies
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Summary:Generation of a local magnetic field at the nanoscale is desirable 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 a 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.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.460836