Tunable phase gate for two atoms with an immunity to decoherence
Shi‐Biao Zheng, Guang‐Can Guo · Physical Review A · 2006
A scheme is presented for realizing a tunable phase gate for two atoms. The scheme is based on atom-cavity interaction and linear optics elements. In comparison with previous schemes, the distinct advantage is that the fidelity of the gate is not affected by the atomic spontaneous emission, cavity decay, and imperfection of the photodetectors, which is important for implementing high-fidelity quantum gates under realistic conditions.