Violating Bell's inequalities in vacuum

By Benni Reznik, A. Retzker, J. Silman. 2003

227 citations recorded by the source corpus.

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}].

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/6ccffc432f60c78b11f5d0e19fb78db5ce940707

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

The Unruh effect and its applications (2007, methodology): “B, studies of the entanglement between independent accelerated detectors coupled to a background field can be found in the literature [see, e.g., Benatti and Floreanini (2004); Massar and Spindel (2006); Pringle (1989); Reznik et al. (2005)].”
Fundamental quantum optics experiments conceivable with satellites—reaching relativistic distances and velocities (2012, background): “Namely, a lower bound for the entanglement of the two detectors’ subsystem after the interaction time T is [73]”
The classical-quantum boundary for correlations: Discord and related measures (2011, background): “(Reznik, 2000; Reznik et al., 2005) show that a pair of initiallycorrelated two-level systems may become entangled after an appropriate interaction with the vacuum state.”