Spontaneous symmetry breaking in spinor Bose-Einstein condensates

被引：10

作者：

Scherer, M. ^{[1
]}

Luecke, B. ^{[1
]}

Peise, J. ^{[1
]}

Topic, O. ^{[1
]}

Gebreyesus, G. ^{[2
]}

Deuretzbacher, F. ^{[2
]}

Ertmer, W. ^{[1
]}

Santos, L. ^{[2
]}

Klempt, C. ^{[1
]}

Arlt, J. J. ^{[3
]}

机构：

[1] Leibniz Univ Hannover, Inst Quantenopt, D-30167 Hannover, Germany

[2] Leibniz Univ Hannover, Inst Theoret Phys, D-30167 Hannover, Germany

[3] Aarhus Univ, Inst Fys & Astron, Danish Natl Res Fdn, QUANTOP,Ctr Quantum Opt, DK-8000 Aarhus C, Denmark

来源：

PHYSICAL REVIEW A | 2013年 / 88卷 / 05期

关键词：

VORTICES; DYNAMICS; PHASE;

D O I：

10.1103/PhysRevA.88.053624

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an analytical model for the theoretical analysis of spin dynamics and spontaneous symmetry breaking in a spinor Bose-Einstein condensate (BEC). This allows for an excellent intuitive understanding of the processes and provides good quantitative agreement with the experimental results of Scherer et al. [Phys. Rev. Lett. 105, 135302 (2010)]. It is shown that the dynamics of a spinor BEC initially prepared in an unstable Zeeman state m(F) = 0 (vertical bar 0 >) can be understood by approximating the effective trapping potential for the state vertical bar +/- 1 > with a cylindrical box potential. The resonances in the creation efficiency of these atom pairs can be traced back to excitation modes of this confinement. The understanding of these excitation modes allows for a detailed characterization of the symmetry-breaking mechanism, showing how a twofold spontaneous breaking of spatial and spin symmetry can occur. In addition, a detailed account of the experimental methods for the preparation and analysis of spinor quantum gases is given.

引用

页数：11

共 39 条

[21] Multiresonant Spinor Dynamics in a Bose-Einstein Condensate
Klempt, C.
Topic, O.
Gebreyesus, G.
Scherer, M.
Henninger, T.
Hyllus, P.
Ertmer, W.
Santos, L.
Arlt, J. J.
[J]. PHYSICAL REVIEW LETTERS, 2009, 103 (19)
[22] Spontaneous Pattern Formation in an Antiferromagnetic Quantum Gas
Kronjaeger, Jochen
Becker, Christoph
Soltan-Panahi, Parvis
Bongs, Kai
Sengstock, Klaus
[J]. PHYSICAL REVIEW LETTERS, 2010, 105 (09)
[23] Twin Matter Waves for Interferometry Beyond the Classical Limit
Luecke, B.
Scherer, M.
Kruse, J.
Pezze, L.
Deuretzbacher, F.
Hyllus, P.
Topic, O.
Peise, J.
Ertmer, W.
Arlt, J.
Santos, L.
Smerzi, A.
Klempt, C.
[J]. SCIENCE, 2011, 334 (6057) : 773 - 776
[24] Vortices in Bose-Einstein-condensed atomic clouds
Lundh, E
Pethick, CJ
Smith, H
[J]. PHYSICAL REVIEW A, 1998, 58 (06): : 4816 - 4823
[25] Vortex formation in a stirred Bose-Einstein condensate
Madison, KW
Chevy, F
Wohlleben, W
Dalibard, J
[J]. PHYSICAL REVIEW LETTERS, 2000, 84 (05) : 806 - 809
[26] Spontaneous symmetry breaking in a nonlinear double-well structure
Mayteevarunyoo, Thawatchai
Malomed, Boris A.
Dong, Guangjiong
[J]. PHYSICAL REVIEW A, 2008, 78 (05):
[27] Effects of thermal and quantum fluctuations on the phase diagram of a spin-1 87Rb Bose-Einstein condensate
Nguyen Thanh Phuc
Kawaguchi, Yuki
Ueda, Masahito
[J]. PHYSICAL REVIEW A, 2011, 84 (04):
[28] Detection of small atom numbers through image processing
Ockeloen, C. F.
Tauschinsky, A. F.
Spreeuw, R. J. C.
Whitlock, S.
[J]. PHYSICAL REVIEW A, 2010, 82 (06):
[29] Bose-Einstein condensation with internal degrees of freedom in alkali atom gases
Ohmi, T
Machida, K
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1998, 67 (06) : 1822 - 1825
[30] Colloquium: Nonequilibrium dynamics of closed interacting quantum systems
Polkovnikov, Anatoli
Sengupta, Krishnendu
Silva, Alessandro
Vengalattore, Mukund
[J]. REVIEWS OF MODERN PHYSICS, 2011, 83 (03) : 863 - 883

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