Einstein-Podolsky-Rosen Correlations of Ultracold Atomic Gases

被引：34

作者：

Bar-Gill, Nir ^{[1
]}

Gross, Christian ^{[2
]}

Mazets, Igor ^{[3
,4
]}

Oberthaler, Markus ^{[2
]}

Kurizki, Gershon ^{[1
]}

机构：

[1] Weizmann Inst Sci, IL-76100 Rehovot, Israel

[2] Heidelberg Univ, Kirchhoff Inst Phys, D-69120 Heidelberg, Germany

[3] TU Wien, Atominst, Vienna, Austria

[4] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 12期

关键词：

CONTINUOUS VARIABLE SYSTEMS; SEPARABILITY CRITERION; ENTANGLEMENT; TELEPORTATION; STATES; PARTICLE; PARADOX;

D O I：

10.1103/PhysRevLett.106.120404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

共 36 条

[1] Gaussian measures of entanglement versus negativities: Ordering of two-mode Gaussian states [J].