Quantitative wave-particle duality and nonerasing quantum erasure

被引：125

作者：

Schwindt, PDD

Kwiat, PG

Englert, BG

机构：

[1] Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87545 USA

[2] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[3] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA

来源：

PHYSICAL REVIEW A | 1999年 / 60卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.60.4285

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The notion of wave-particle duality may be quantified by the inequality V-2 + K-2 less than or equal to 1, relating interference fringe visibility V, and path knowledge K. With a single-photon interferometer in which-polarization is used to label the paths, we have investigated the relation for various situations, including pure, mixed, and partially mixed input states. A quantum-eraser scheme has been realized that recovers interference fringes even when no which way information is available to erase. [S1050-2947(99)02911-X].

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收藏

页码：4285 / 4290

页数：6

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