Quantum logic operation with single trapped ion by two pairs of laser beams
Rong Zhang, Jianxing Fang, Shiqun Zhu · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2002
We present a scheme to realize the quantum logic operation without an auxiliary level or the limitation on the Lamb-Dicke parameter. The scheme uses two pairs of laser beams that are perpendicular to each other, both of the beams are tuned to the carrier. The internal state of the ion acts as the target qubit and the Fock state of the ion as the control qubit.