Spin flips and quantum information for antiparallel spins

被引：215

作者：

Gisin, N ^{[1
]}

Popescu, S

机构：

[1] Univ Geneva, Appl Phys Grp, CH-1211 Geneva 4, Switzerland

[2] Univ Cambridge, Isaac Newton Inst, Cambridge CB3 0EH, England

[3] BRIMS Hewlett Packard Lab, Bristol, Avon, England

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.83.432

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider two different ways to encode quantum information, by parallel or antiparallel pairs of spins. We find that there is more information in the antiparallel ones. This purely quantum mechanical effect is due to entanglement, not of the states but occurring in the course of the measuring process. We also introduce a range of quantum information processing machines, such as spin flip and anticloning.

引用

页码：432 / 435

页数：4

共 10 条

[1]

BECHMANN H, QUANTPH9807041

[2]

BENNETT CH, QUANTPH9804053

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