Towards an Einstein-Podolsky-Rosen paradox between two macroscopic atomic ensembles at room temperature

被引：13

作者：

He, Q. Y. ^{[1
,2
]}

Reid, M. D. ^{[2
]}

机构：

[1] Peking Univ, Sch Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China

[2] Swinburne Univ Technol, Ctr Quantum Atom Opt, Melbourne, Vic, Australia

来源：

NEW JOURNAL OF PHYSICS | 2013年 / 15卷

基金：

澳大利亚研究理事会; 中国国家自然科学基金;

关键词：

BELLS-INEQUALITY; EXPERIMENTAL GENERATION; QUANTUM-MECHANICS; ENTANGLEMENT; VIOLATION; REALIZATION; LOCALITY; PHOTONS; MATTER; STATE;

D O I：

10.1088/1367-2630/15/6/063027

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Experiments have reported the entanglement of two spatially separated macroscopic atomic ensembles at room temperature (Krauter et al 2011 Phys. Rev. Lett. 107 080503; Julsgaard et al 2001 Nature 413 400). We show how an Einstein-Podolsky-Rosen (EPR) paradox is realizable with this experiment. Our proposed test involves violation of an inferred Heisenberg uncertainty principle, which is a sufficient condition for an EPR paradox. This is a stronger test of nonlocality than entanglement. Our proposal would enable the first definitive confirmation of quantum EPR paradox correlations between two macroscopic objects at room temperature. This is a necessary intermediate step towards a nonlocal experiment with causal measurement separations. As well as having fundamental significance, the realization of an atomic EPR paradox could provide a resource for novel applications in quantum technology.

引用

页数：16

共 95 条

[1] Violation of Bell's inequality in Josephson phase qubits [J].

Ansmann, Markus ;

Wang, H. ;

Bialczak, Radoslaw C. ;

Hofheinz, Max ;

Lucero, Erik ;

Neeley, M. ;

O'Connell, A. D. ;

Sank, D. ;

Weides, M. ;

Wenner, J. ;

Cleland, A. N. ;

Martinis, John M. .

NATURE, 2009, 461 (7263) :504-506

[2] EXPERIMENTAL REALIZATION OF EINSTEIN-PODOLSKY-ROSEN-BOHM GEDANKENEXPERIMENT - A NEW VIOLATION OF BELL INEQUALITIES [J].

ASPECT, A ;

GRANGIER, P ;

ROGER, G .

PHYSICAL REVIEW LETTERS, 1982, 49 (02) :91-94

[3] EXPERIMENTAL TEST OF BELL INEQUALITIES USING TIME-VARYING ANALYZERS [J].

ASPECT, A ;

DALIBARD, J ;

ROGER, G .

PHYSICAL REVIEW LETTERS, 1982, 49 (25) :1804-1807

[4] Einstein-Podolsky-Rosen Correlations of Ultracold Atomic Gases [J].

Bar-Gill, Nir ;

Gross, Christian ;

Mazets, Igor ;

Oberthaler, Markus ;

Kurizki, Gershon .

PHYSICAL REVIEW LETTERS, 2011, 106 (12)

[5] ROTATIONAL INVARIANCE, LOCALITY, AND EINSTEIN-PODOLSKY-ROSEN EXPERIMENTS [J].

BARUT, AO ;

MEYSTRE, P .

PHYSICAL REVIEW LETTERS, 1984, 53 (10) :1021-1021

[6]

Bell J. S., 1964, Physics, V1, P195, DOI [10.1103/physicsphysiquefizika.1.195, DOI 10.1103/PHYSICSPHYSIQUEFIZIKA.1.195, 10.1103/Physics-PhysiqueFizika.1.195]

[7] Arbitrarily Loss-Tolerant Einstein-Podolsky-Rosen Steering Allowing a Demonstration over 1 km of Optical Fiber with No Detection Loophole [J].

Bennet, A. J. ;

Evans, D. A. ;

Saunders, D. J. ;

Branciard, C. ;

Cavalcanti, E. G. ;

Wiseman, H. M. ;

Pryde, G. J. .

PHYSICAL REVIEW X, 2012, 2 (03)

[8]

Bertlmann RA, 1999, PHYS REV D, V60, DOI 10.1103/PhysRevD.60.114032

[9] Experimental demonstration of continuous variable polarization entanglement [J].

Bowen, WP ;

Treps, N ;

Schnabel, R ;

Lam, PK .

PHYSICAL REVIEW LETTERS, 2002, 89 (25) :1-253601

[10] Entangled images from four-wave mixing [J].

Boyer, Vincent ;

Marino, Alberto M. ;

Pooser, Raphael C. ;

Lett, Paul D. .

SCIENCE, 2008, 321 (5888) :544-547

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