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

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.

6 pages, 6 figures

References in corpus (4)

• Feedback control of quantum state reduction
• Uncollapsing of a quantum state in a superconducting phase qubit
• Spin squeezing of a cold atomic ensemble with the nuclear spin of one-half
• Phase shift of a weak coherent beam induced by a single atom

Cited by in corpus (6)

• Site-resolved imaging of ytterbium atoms in a two-dimensional optical lattice
• High-resolution spectroscopy and single-photon Rydberg excitation of reconfigurable ytterbium atom tweezer arrays utilizing a metastable state
• Projective measurement of a single nuclear spin qubit by using two-mode cavity QED
• Injection locking of a high power ultraviolet laser diode for laser cooling of ytterbium atoms
• Quantum State Engineering using Single Nuclear Spin Qubit of Optically Manipulated Ytterbium Atom
• Theory of optical spin control in quantum dot microcavities