Decoherence in a quantum walk on the line

被引：0

作者：

Kendon, V ^{[1
]}

Tregenna, B ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Opt Sect, London SW7 2BW, England

来源：

QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING, PROCEEDINGS | 2003年

关键词：

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

We have studied how decoherence affects a quantum walk on the line. As expected, it is highly sensitive, consisting as it does of an extremely delocalized particle. We obtain an expression for the rate at which the standard deviation falls from the quantum value as decoherence increases and show that it is proportional to the number of decoherence "events" occurring during the walk.

引用

页码：463 / 466

页数：4

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