Two-Point Phase Correlations of a One-Dimensional Bosonic Josephson Junction

被引：73

作者：

Betz, T. ^{[1
]}

Manz, S. ^{[1
]}

Buecker, R. ^{[1
]}

Berrada, T. ^{[1
]}

Koller, Ch. ^{[1
]}

Kazakov, G. ^{[2
,3
]}

Mazets, I. E. ^{[1
,2
,4
]}

Stimming, H. -P. ^{[2
]}

Perrin, A. ^{[1
,2
]}

Schumm, T. ^{[1
,2
]}

Schmiedmayer, J. ^{[1
]}

机构：

[1] TU Wien, Atominst, Vienna Ctr Quantum Sci & Technol, A-1020 Vienna, Austria

[2] Univ Vienna, Wolfgang Pauli Inst, A-1090 Vienna, Austria

[3] St Petersburg State Polytech Univ, St Petersburg 195251, Russia

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

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 02期

基金：

奥地利科学基金会;

关键词：

QUANTUM; OSCILLATIONS;

D O I：

10.1103/PhysRevLett.106.020407

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We realize a one-dimensional Josephson junction using quantum degenerate Bose gases in a tunable double well potential on an atom chip. Matter wave interferometry gives direct access to the relative phase field, which reflects the interplay of thermally driven fluctuations and phase locking due to tunneling. The thermal equilibrium state is characterized by probing the full statistical distribution function of the two-point phase correlation. Comparison to a stochastic model allows us to measure the coupling strength and temperature and hence a full characterization of the system.

引用

页数：4

共 27 条

[1] Direct observation of tunneling and nonlinear self-trapping in a single bosonic Josephson junction -: art. no. 010402 [J].

Albiez, M ;

Gati, R ;

Fölling, J ;

Hunsmann, S ;

Cristiani, M ;

Oberthaler, MK .

PHYSICAL REVIEW LETTERS, 2005, 95 (01)

[2] Modulational instabilities in Josephson oscillations of elongated coupled condensates [J].

Bouchoule, I .

EUROPEAN PHYSICAL JOURNAL D, 2005, 35 (01) :147-154

[3] Single-particle-sensitive imaging of freely propagating ultracold atoms [J].

Buecker, R. ;

Perrin, A. ;

Manz, S. ;

Betz, T. ;

Koller, Ch ;

Plisson, T. ;

Rottmann, J. ;

Schumm, T. ;

Schmiedmayer, J. .

NEW JOURNAL OF PHYSICS, 2009, 11

[4]

Folman R, 2002, ADV ATOM MOL OPT PHY, V48, P263

[5] Controlling cold atoms using nanofabricated surfaces:: Atom chips [J].

Folman, R ;

Krüger, P ;

Cassettari, D ;

Hessmo, B ;

Maier, T ;

Schmiedmayer, J .

PHYSICAL REVIEW LETTERS, 2000, 84 (20) :4749-4752

[6] Noise thermometry with two weakly coupled Bose-Einstein condensates [J].

Gati, R ;

Hemmerling, B ;

Fölling, J ;

Albiez, M ;

Oberthaler, MK .

PHYSICAL REVIEW LETTERS, 2006, 96 (13)

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

Gerbier, F .

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

[8] Full quantum distribution of contrast in interference experiments between interacting one-dimensional Bose liquids [J].

Gritsev, Vladimir ;

Altman, Ehud ;

Demler, Eugene ;

Polkovnikov, Anatoli .

NATURE PHYSICS, 2006, 2 (10) :705-709

[9] Breakdown of macroscopic quantum self-trapping in coupled mesoscopic one-dimensional Bose gases [J].

Hipolito, Rafael ;

Polkovnikov, Anatoli .

PHYSICAL REVIEW A, 2010, 81 (01)

[10] Probing quantum and thermal noise in an interacting many-body system [J].

Hofferberth, S. ;

Lesanovsky, I. ;

Schumm, T. ;

Imambekov, A. ;

Gritsev, V. ;

Demler, E. ;

Schmiedmayer, J. .

NATURE PHYSICS, 2008, 4 (06) :489-495

← 1 2 3 →