arXiv:quant-ph/0110114AbstractReferencesReviewsResources
Natural Entanglement in Bose-Einstein Condensates
Published 2001-10-18Version 1
Every Bose-Einstein condensate is in a highly entangled state, as a consequence of the fact that the particles in a condensate are distributed over space in a coherent way. It is proved that any two regions within a condensate of finite particle number are entangled. This entanglement does not depend on the distance between the two regions. Criteria for the presence of entanglement are derived in the context of interference experiments. For separable states there is a trade-off between fluctuations in particle number and interference visibility.
Comments: 4 pages
Journal: Phys. Rev. A 66, 052323 (2002)
Keywords: bose-einstein condensate, natural entanglement, finite particle number, interference visibility, coherent way
Tags: journal article
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