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Faraday Rotation with Single Nuclear Spin Qubit in a High-Finesse Optical Cavity
Nobuyuki Takei, Makoto Takeuchi, Yujiro Eto +4
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 mo…
Single Nuclear Spin Cavity QED
Makoto Takeuchi, Nobuyuki Takei, Kodai Doi +3
We constructed a cavity QED system with a diamagnetic atom of 171Yb and performed projective measurements on a single nuclear spin. Since Yb has no electronic spin and has 1/2 nucl…
Quantum memory of a squeezed vacuum for arbitrary frequency sidebands
Manabu Arikawa, Kazuhito Honda, Daisuke Akamatsu +3
We have developed a quantum memory technique that is completely compatible with current quantum information processing for continuous variables of light, where arbitrary frequency…
Measuring Qutrit-Qutrit Entanglement of Orbital Angular Momentum States of an Atomic Ensemble and a Photon
R. Inoue, T. Yonehara, Y. Miyamoto +2
Three-dimensional entanglement of orbital angular momentum states of an atomic qutrit and a single photon qutrit has been observed. Their full state was reconstructed using quantum…