Violating Bell's inequalities in vacuum

Journal Article · Fri Apr 01 00:00:00 EST 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.71.042104· OSTI ID:20653251

Reznik, Benni; Retzker, Alex; Silman, Jonathan ^[1]

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1. School of Physics and Astronomy, Tel-Aviv University, Tel Aviv 69978 (Israel)

We employ an approach wherein the ground state entanglement of a relativistic free scalar field is directly probed in a controlled manner. The approach consists of having a pair of initially nonentangled detectors locally interact with the vacuum for a finite duration T, such that the two detectors remain causally disconnected, and then analyzing the resulting detector mixed state. We show that the correlations between arbitrarily far-apart regions of the vacuum cannot be reproduced by a local hidden-variable model, and that as a function of the distance L between the regions, the entanglement decreases at a slower rate than {approx}exp[-(L/cT){sup 3}].

• OSTI ID: 20653251
• Journal Information: Physical Review. A, Vol. 71, Issue 4; Other Information: DOI: 10.1103/PhysRevA.71.042104; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BELL THEOREM
CORRELATIONS
DISTANCE
GROUND STATES
HIDDEN VARIABLES
MIXED STATE
QUANTUM MECHANICS
QUANTUM NUMBERS
RELATIVISTIC RANGE
SCALAR FIELDS