Einstein-Podolsky-Rosen Correlations of Ultracold Atomic Gases

Journal Article · Fri Mar 25 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.120404· OSTI ID:21562115

Bar-Gill, Nir; Kurizki, Gershon ^[1]; Gross, Christian; Oberthaler, Markus ^[2]; Mazets, Igor ^[3]

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1. Weizmann Institute of Science, Rehovot (Israel)
2. Kirchhoff-Institut fuer Physik, Universitaet Heidelberg, 69120 Heidelberg (Germany)
3. Atominstitut, TU Wien, Vienna (Austria); Ioffe Physico-Technical Institute, St. Petersburg 194021 (Russian Federation)

We demonstrate that collective continuous variables of two species of trapped ultracold bosonic gases can be Einstein-Podolsky-Rosen-correlated (entangled) via inherent interactions between the species. We propose two different schemes for creating these correlations--a dynamical scheme and a static scheme analogous to two-mode squeezing in quantum optics. We quantify the correlations by using known measures of entanglement and study the effect of finite temperature on these quantum correlations.

• OSTI ID: 21562115
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 12 Vol. 106; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CORRELATIONS
FLUIDS
GASES
INTERACTIONS
OPTICS
QUANTUM ENTANGLEMENT
TRAPPING