Temporal indistinguishability and quantum interference

被引：21

作者：

Kim, YH ^{[1
]}

Berardi, V

Chekhova, MV

Garuccio, A

Shih, Y

机构：

[1] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA

[2] Univ Bari, INFM, Dipartimento Interateneo Fis, Bari, Italy

[3] Moscow MV Lomonosov State Univ, Dept Phys, Moscow, Russia

[4] Univ Bari, Ist Nazl Fis Nucl, Dipartimento Interatento Fis, Bari, Italy

来源：

PHYSICAL REVIEW A | 2000年 / 62卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.62.043820

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A chi((2)) nonlinear optical crystal is pumped by two temporally well-distinguishable femtosecond laser pulses to generate entangled photon pairs in the process of spontaneous parametric down-conversion. We have observed first- and second-order interference between amplitudes generated from the first and the second pump pulse as a function of the time delay between the two pump pulses. The criteria for first- and second-order interference are found to be very different, which reflect the quantum entanglement nature of the state of spontaneous parametric down-conversion.

引用

页数：4

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