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arXiv · 0912.4948

Faraday Rotation with Single Nuclear Spin Qubit in a High-Finesse Optical Cavity

Nobuyuki Takei·Makoto Takeuchi·Yujiro Eto·Atsushi Noguchi·Peng Zhang·Masahito Ueda·Mikio Kozuma
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Abstract

When an off-resonant light field is coupled with atomic spins, its polarization can rotate depending on the direction of the spins via a Faraday rotation which has been used for monitoring and controlling the atomic spins. We observed Faraday rotation by an angle of more than 10 degrees for a single 1/2 nuclear spin of 171Yb atom in a high-finesse optical cavity. By employing the coupling between the single nuclear spin and a photon, we have also demonstrated that the spin can be projected or weakly measured through the projection of the transmitted single ancillary photon.

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Nobuyuki Takei, Makoto Takeuchi, Yujiro Eto, Atsushi Noguchi, Peng Zhang, Masahito Ueda, Mikio Kozuma. 2010-04-28. Faraday Rotation with Single Nuclear Spin Qubit in a High-Finesse Optical Cavity. https://doi.org/10.1103/physreva.81.042331

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