Optimizing a phase gate using quantum interference.
Optimizing a phase gate using quantum interference.
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DOI：
10.1103/physrevlett.88.077901
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发表时间：
2002-01
影响因子：
8.6
通讯作者：
E. Charron;E. Tiesinga;F. Mies;Carl J. Williams
中科院分区：
文献类型：
--
作者：
E. Charron;E. Tiesinga;F. Mies;Carl J. Williams
提出了一种受控干涉，以将量子门的退相干降低两个数量级，对于该量子门，门保真度受到与除了/0>和/1>量子比特状态之外的状态的耦合的限制。这种现象在超冷中性原子实现的相位门使用量子位的基础上的运动状态的光学晶格的各个威尔斯。
A controlled interference is proposed to reduce, by two orders of magnitude, the decoherence of a quantum gate for which the gate fidelity is limited by coupling to states other than the /0> and /1> qubit states. This phenomenon is demonstrated in an ultracold neutral atom implementation of a phase gate using qubits based on motional states in individual wells of an optical lattice.