Yang-Yang thermodynamics on an atom chip

被引：202

作者：

van Amerongen, A. H. ^{[1
]}

van Es, J. J. P. ^{[1
]}

Wicke, P. ^{[1
]}

Kheruntsyan, K. V. ^{[2
]}

van Druten, N. J. ^{[1
]}

机构：

[1] Univ Amsterdam, Van der Waals Zeeman Inst, NL-1018 XE Amsterdam, Netherlands

[2] Univ Queensland, Sch Phys Sci, ARC Ctr Excellence Quantum Atom Opt, Brisbane, Qld 4072, Australia

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.100.090402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the behavior of a weakly interacting nearly one-dimensional trapped Bose gas at finite temperature. We perform in situ measurements of spatial density profiles and show that they are very well described by a model based on exact solutions obtained using the Yang-Yang thermodynamic formalism, in a regime where other, approximate theoretical approaches fail. We use Bose-gas focusing [I. Shvarchuck , Phys. Rev. Lett. 89, 270404 (2002)] to probe the axial momentum distribution of the gas and find good agreement with the in situ results.

引用

页数：4

共 35 条

[1] Phase fluctuations in atomic Bose gases [J].

Andersen, JO ;

Al Khawaja, U ;

Stoof, HTC .

PHYSICAL REVIEW LETTERS, 2002, 88 (07) :4

[2] Quasi-one-dimensional Bose gases with a large scattering length [J].

Astrakharchik, GE ;

Blume, D ;

Giorgini, S ;

Granger, BE .

PHYSICAL REVIEW LETTERS, 2004, 92 (03) :4

[3] Interaction-induced crossover versus finite-size condensation in a weakly interacting trapped one-dimensional Bose gas [J].

Bouchoule, I. ;

Kheruntsyan, K. V. ;

Shlyapnikov, G. V. .

PHYSICAL REVIEW A, 2007, 75 (03)

[4] Simple theoretical tools for low dimension Bose gases [J].

Castin, Y .

JOURNAL DE PHYSIQUE IV, 2004, 116 :89-132

[5] Dynamical density-density correlations in the one-dimensional Bose gas [J].

Caux, Jean-Sebastien ;

Calabrese, Pasquale .

PHYSICAL REVIEW A, 2006, 74 (03)

[6] One-dimensional optical lattices and impenetrable bosons [J].

Cazalilla, MA .

PHYSICAL REVIEW A, 2003, 67 (05) :4

[7] Observation of phase fluctuations in elongated Bose-Einstein condensates [J].

Dettmer, S ;

Hellweg, D ;

Ryytty, P ;

Arlt, JJ ;

Ertmer, W ;

Sengstock, K ;

Petrov, DS ;

Shlyapnikov, GV ;

Kreutzmann, H ;

Santos, L ;

Lewenstein, M .

PHYSICAL REVIEW LETTERS, 2001, 87 (16) :art. no.-160406

[8] Observations of density fluctuations in an elongated bose gas: Ideal gas and quasicondensate regimes [J].

Esteve, J ;

Trebbia, JB ;

Schumm, T ;

Aspect, A ;

Westbrook, CI ;

Bouchoule, I .

PHYSICAL REVIEW LETTERS, 2006, 96 (13)

[9] Role of wire imperfections in micromagnetic traps for atoms -: art. no. 042629 [J].

Estève, J ;

Aussibal, C ;

Schumm, T ;

Figl, C ;

Mailly, D ;

Bouchoule, I ;

Westbrook, CI ;

Aspect, A .

PHYSICAL REVIEW A, 2004, 70 (04) :043629-1

[10] Quasi-1D Bose-Einstein condensates in the dimensional crossover regime [J].

Gerbier, F .

EUROPHYSICS LETTERS, 2004, 66 (06) :771-777

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