Programmable quantum gate arrays

被引：279

作者：

Nielsen, MA ^{[1
]}

Chuang, IL ^{[1
]}

机构：

[1] LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.79.321

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show how to construct quantum gate arrays that can be programmed to perform different unitary operations on a data register, depending on the input to some program register. It is shown that a universal quantum gate array - a gate array which can be programmed to perform any unitary operation - exists only if one allows the gate array to operate in a probabilistic fashion. Thus it is not possible to build a fixed, general purpose quantum computer which can be programmed to perform an arbitrary quantum computation.

引用

页码：321 / 324

页数：4

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