Creating Nonclassical States of Bose-Einstein Condensates by Dephasing Collisions

被引:35
作者
Bar-Gill, Nir [1 ,2 ]
Rao, D. D. Bhaktavatsala [1 ]
Kurizki, Gershon [1 ]
机构
[1] Weizmann Inst Sci, IL-76100 Rehovot, Israel
[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA
关键词
QUANTUM; GASES;
D O I
10.1103/PhysRevLett.107.010404
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We show, using an exactly solvable model, that nonlinear dynamics is induced in a double-well Bose-Einstein condensate (BEC) by collisions with a thermal reservoir. This dynamics can facilitate the creation of phase or number squeezing and, at longer times, the creation of macroscopic nonclassical superposition states. Enhancement of these effects is possible by loading the reservoir atoms into an optical lattice.
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页数:4
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共 24 条
[1]   Cold, dilute, trapped bosons as an open quantum system [J].
Anglin, J .
PHYSICAL REVIEW LETTERS, 1997, 79 (01) :6-9
[2]   Dynamics of a two-mode Bose-Einstein condensate beyond mean-field theory [J].
Anglin, JR ;
Vardi, A .
PHYSICAL REVIEW A, 2001, 64 (01) :9
[3]   Dynamic control and probing of many-body decoherence in double-well Bose-Einstein condensates [J].
Bar-Gill, Nir ;
Kurizki, Gershon ;
Oberthaler, Markus ;
Davidson, Nir .
PHYSICAL REVIEW A, 2009, 80 (05)
[4]   Short-time Enhancement of the Decay of Coherent Excitations in Bose-Einstein Condensates [J].
Bar-Gill, Nir ;
Rowen, Eitan E. ;
Kurizki, Gershon ;
Davidson, Nir .
PHYSICAL REVIEW LETTERS, 2009, 102 (11)
[5]   Quantum superposition states of Bose-Einstein condensates [J].
Cirac, JI ;
Lewenstein, M ;
Molmer, K ;
Zoller, P .
PHYSICAL REVIEW A, 1998, 57 (02) :1208-1218
[6]   Theory of Bose-Einstein condensation in trapped gases [J].
Dalfovo, F ;
Giorgini, S ;
Pitaevskii, LP ;
Stringari, S .
REVIEWS OF MODERN PHYSICS, 1999, 71 (03) :463-512
[7]   Atom-molecule coherence in Bose gases [J].
Duine, RA ;
Stoof, HTC .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2004, 396 (03) :115-195
[8]   Thermodynamic control by frequent quantum measurements [J].
Erez, Noam ;
Gordon, Goren ;
Nest, Mathias ;
Kurizki, Gershon .
NATURE, 2008, 452 (7188) :724-727
[9]   Squeezing and entanglement in a Bose-Einstein condensate [J].
Esteve, J. ;
Gross, C. ;
Weller, A. ;
Giovanazzi, S. ;
Oberthaler, M. K. .
NATURE, 2008, 455 (7217) :1216-1219
[10]   Nonlinear atom interferometer surpasses classical precision limit [J].
Gross, C. ;
Zibold, T. ;
Nicklas, E. ;
Esteve, J. ;
Oberthaler, M. K. .
NATURE, 2010, 464 (7292) :1165-1169