INTERFEROMETRIC DETECTION OF OPTICAL-PHASE SHIFTS AT THE HEISENBERG LIMIT

被引：695

作者：

HOLLAND, MJ

BURNETT, K

机构：

[1] Department of Physics, Clarendon Laboratory, Oxford, OX1 3PU, Parks Road

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.71.1355

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that the uncertainty in the relative quantum phase of two fields propagating in the arms of a Mach-Zehnder interferometer can be reduced to the Heisenberg limit by driving the interferometer with two Fock states containing equal numbers of photons. This leads to a minimum detectable phase shift far below that of any interferometer driven by a coherent light source.

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页码：1355 / 1358

页数：4

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