Exchange gate on the qudit space and Fock space

被引:12
作者
Fujii, K [1 ]
机构
[1] Yokohama City Univ, Dept Math Sci, Yokohama, Kanagawa 2360027, Japan
关键词
qudit space; Fock space; exchange gate;
D O I
10.1088/1464-4266/5/6/011
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We construct an exchange gate with small elementary gates on the space of qudits, which consist of three controlled shift gates and three 'reverse' gates. This is a natural extension of the qubit case. We also consider a similar situation in Fock space, but in this case we find some differences. However, we can construct the exchange gate by making use of a generalized coherent operator based on the Lie algebra su(2), which is a well-known method in quantum optics. We also make a brief comment on 'imperfect clones'.
引用
收藏
页码:S613 / S618
页数:6
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