基于一个离子阱一步产生控制相位门的方案

摘要

We present a very simple scheme for generating quantum controlled phase-shift gate with one step using the two vibrational modes of a trapped ion as the two qubits. The scheme couples two vibration degrees of freedom coupled with a suitable chosen laser excitation via the ionic states.%我们提出利用一个离子阱的两个振动模作为两比特,一步产生控制相位门的方案。该方案外加一个合适的可调激光激发,通过离子态耦合两个振动自由度。我们的方案消除了使用两个离子阱作为两比特的复杂性。