DETERMINATION OF DENSITY-MATRICES FROM FIELD DISTRIBUTIONS AND QUASI-PROBABILITIES

被引：73

作者：

KUHN, H ^{[1
]}

WELSCH, DG ^{[1
]}

VOGEL, W ^{[1
]}

机构：

[1] UNIV ROSTOCK,FACHBEREICH PHYS,D-18051 ROSTOCK,GERMANY

来源：

JOURNAL OF MODERN OPTICS | 1994年 / 41卷 / 08期

关键词：

D O I：

10.1080/09500349414552441

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

It is shown that the density matrix elements of a radiation mode in a chosen field strength representation can be obtained from the field strength distributions (with the phase being varied in a pi interval) by a twofold Fourier transformation, and from the quasiprobability distributions P(alpha; s) (s < 0) by a threefold one. The method also applies, in principle, to the smoothed distributions observed in balanced homodyne (four-port and eight-port) detections with detector efficiencies less than unity.

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页码：1607 / 1613

页数：7

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