Extended quantum color coding

被引：6
|
作者：
Hayashi, A [1 ]
Hashimoto, T [1 ]
Horibe, M [1 ]
机构：
[1] Univ Fukui, Dept Appl Phys, Fukui 9108507, Japan
来源：
PHYSICAL REVIEW A | 2005年 / 71卷 / 01期
关键词：
D O I：
10.1103/PhysRevA.71.012326
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The quantum color coding scheme proposed by Korff and Kempe [e-print quant-ph/0405086] is easily extended so that the color coding quantum system is allowed to be entangled with an extra auxiliary quantum system. It is shown that in the extended scheme we need only similar to2rootN quantum colors to order N objects in large N limit, whereas similar toN/e quantum colors are required in the original nonextended version. The maximum success probability has asymptotics expressed by the Tracy-Widom distribution of the largest eigenvalue of a random Gaussian unitary ensemble (GUE) matrix.
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页数：4
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