Entanglement swapping and testing quantum steering into the past via collective decay

被引：7

作者：

Chen, Yueh-Nan ^{[1
,2
]}

Chen, Shin-Liang ^{[1
,2
]}

Lambert, Neill ^{[3
]}

Li, Che-Ming ^{[4
]}

Chen, Guang-Yin ^{[5
]}

Nori, Franco ^{[3
,6
]}

机构：

[1] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

[2] Natl Cheng Kung Univ, Natl Ctr Theoret Sci, Tainan 701, Taiwan

[3] RIKEN, CEMS, Wako, Saitama 3510198, Japan

[4] Natl Cheng Kung Univ, Dept Engn Sci, Tainan 701, Taiwan

[5] Natl Chung Hsing Univ, Dept Phys, Taichung 402, Taiwan

[6] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

来源：

PHYSICAL REVIEW A | 2013年 / 88卷 / 05期

关键词：

SUPERCONDUCTING CIRCUITS; DELAYED-CHOICE; TELEPORTATION; COMMUNICATION; PHOTONS; OPTICS; QUBITS; STATES; ATOMS;

D O I：

10.1103/PhysRevA.88.052320

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a scheme to realize entanglement swapping via superradiance, entangling two distant cavities without a direct interaction. The successful Bell-state-measurement outcomes are performed naturally by the electromagnetic reservoir, and we show how, using a quantum trajectory method, the nonlocal properties of the state obtained after the swapping procedure can be verified by the steering inequality. Furthermore, we discuss how the unsuccessful measurement outcomes can be used in an experiment of delayed-choice entanglement swapping. An extension of testing the quantum steering inequality with the observers at three different times is also considered.

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收藏

页数：6

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