Realization of Quantum Logic Gates in Ion Traps Without Any Requirement on the Lamb-Dicke Parameter
Zheng Shi-Biao, Feng Mang, Xiwen Zhu · Chinese Physics Letters · 2000
A scheme is presented for realizing quantum logic gate in an ion trap. In the scheme the state of the m th ion is first replicated onto the collective motion. Then a transformation, conditional on the motional state, is performed on the n th ion. Finally the motional state is replicated back onto the m th ion. By this way the quantum logic gate between the m th and the n th ions is realized. The scheme does not put any requirement on the Lamb-Dicke parameter.