Breakdown of adiabaticity when loading ultracold atoms in optical lattices

被引：35

作者：

Zakrzewski, Jakub ^{[1
,2
,3
]}

Delande, Dominique ^{[3
]}

机构：

[1] Uniwersytet Jagiellonski, Inst Fiz Imienia Mariana Smoluchowskiego, PL-30059 Krakow, Poland

[2] Uniwersytet Jagiellonski, Mark Kac Complex Syst Res Ctr, PL-30059 Krakow, Poland

[3] UPMC, Lab Kastler Brossel, CNRS, ENS, F-75005 Paris, France

来源：

PHYSICAL REVIEW A | 2009年 / 80卷 / 01期

关键词：

ANDERSON LOCALIZATION; PHASE-TRANSITION; SUPERFLUID; INSULATOR; GAS;

D O I：

10.1103/PhysRevA.80.013602

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Realistic simulations of current ultracold atom experiments in optical lattices show that the ramping up of the optical lattice is significantly nonadiabatic, implying that experimentally prepared Mott insulators are not really in the ground state of the atomic system. The nonadiabaticity is even larger in the presence of a secondary quasiperiodic lattice simulating "disorder." Alternative ramping schemes are suggested that improve the adiabaticity when the disorder is not too large.

引用

页数：5

共 39 条

[1] Optimal nonlinear passage through a quantum critical point [J].

Barankov, Roman ;

Polkovnikov, Anatoli .

PHYSICAL REVIEW LETTERS, 2008, 101 (07)

[2] Direct observation of Anderson localization of matter waves in a controlled disorder [J].

Billy, Juliette ;

Josse, Vincent ;

Zuo, Zhanchun ;

Bernard, Alain ;

Hambrecht, Ben ;

Lugan, Pierre ;

Clement, David ;

Sanchez-Palencia, Laurent ;

Bouyer, Philippe ;

Aspect, Alain .

NATURE, 2008, 453 (7197) :891-894

[3] Dynamics of the superfluid to Mott-insulator transition in one dimension [J].

Clark, SR ;

Jaksch, D .

PHYSICAL REVIEW A, 2004, 70 (04) :043612-1

[4] Suppression of transport of an interacting elongated Bose-Einstein condensate in a random potential -: art. no. 170409 [J].

Clément, D ;

Varón, AF ;

Hugbart, M ;

Retter, JA ;

Bouyer, P ;

Sanchez-Palencia, L ;

Gangardt, DM ;

Shlyapnikov, GV ;

Aspect, A .

PHYSICAL REVIEW LETTERS, 2005, 95 (17)

[5] Dynamics of the Bose-Hubbard model: Transition from a Mott insulator to a superfluid [J].

Cucchietti, Fernando M. ;

Damski, Bogdan ;

Dziarmaga, Jacek ;

Zurek, Wojciech H. .

PHYSICAL REVIEW A, 2007, 75 (02)

[6] Atomic Bose and Anderson glasses in optical lattices [J].

Damski, B ;

Zakrzewski, J ;

Santos, L ;

Zoller, P ;

Lewenstein, M .

PHYSICAL REVIEW LETTERS, 2003, 91 (08) :804031-804034

[7] Compression as a Tool to Detect Bose Glass in a Cold Atomic Gas [J].

Delande, Dominique ;

Zakrzewski, Jakub .

PHYSICAL REVIEW LETTERS, 2009, 102 (08)

[8] Phase diagram and momentum distribution of an interacting Bose gas in a bichromatic lattice [J].

Deng, Xiaolong ;

Citro, R. ;

Minguzzi, A. ;

Orignac, E. .

PHYSICAL REVIEW A, 2008, 78 (01)

[9] Dynamics of a quantum phase transition in the random Ising model: Logarithmic dependence of the defect density on the transition rate [J].

Dziarmaga, Jacek .

PHYSICAL REVIEW B, 2006, 74 (06)

[10] Adiabaticity and Localization in One-Dimensional Incommensurate Lattices [J].

Edwards, E. E. ;

Beeler, M. ;

Hong, Tao ;

Rolston, S. L. .

PHYSICAL REVIEW LETTERS, 2008, 101 (26)

← 1 2 3 4 →