0310058v2

related topics
{entanglement, phys, rev}
{photon, photons, single}
{time, decoherence, evolution}
{bell, inequality, local}
{field, particle, equation}
{energy, gaussian, time}
{level, atom, field}
{force, casimir, field}
{energy, state, states}
{particle, mechanics, theory}
{state, states, entangled}
{time, wave, function}
{cos, sin, state}
{trap, ion, state}

Violating Bell's inequalities in the vacuum

Benni Reznik, Alex Retzker, Jonathan Silman

abstract: We employ an approach wherein vacuum entanglement is directly probed in a controlled manner. The approach consists of having a pair of initially nonentangled detectors locally interact with the field for a finite duration, such that the two detectors remain causally disconnected, and then analyzing the resulting detector mixed state. It is demonstrated that the correlations between arbitrarily far-apart regions of the vacuum of a relativistic free scalar field 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 exp(-(L/cT)^3).

oai_identifier:
oai:arXiv.org:quant-ph/0310058
categories:
quant-ph
comments:
4 pages, 3 figures. A discussion has been added on the nature of the relativistic corrections for the particle detectors. We argue that such corrections do not affect the conclusions
doi:
10.1103/PhysRevA.71.042104
arxiv_id:
quant-ph/0310058
journal_ref:
Phys. Rev. A 71, 042104 (2005)
created:
2003-10-09
updated:
2004-12-14

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