Quantum dynamics of an atomic Bose-Einstein condensate in a double-well potential

被引：1016

作者：

Milburn, GJ

Corney, J

Wright, EM

Walls, DF

机构：

[1] UNIV STRATHCLYDE, DEPT PHYS & APPL PHYS, GLASGOW G4 0NG, LANARK, SCOTLAND

[2] UNIV ARIZONA, CTR OPT SCI, TUCSON, AZ 85721 USA

[3] UNIV AUCKLAND, DEPT PHYS, AUCKLAND, NEW ZEALAND

来源：

PHYSICAL REVIEW A | 1997年 / 55卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.55.4318

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We consider the quantum dynamics of a neutral atom Bose-Einstein condensate in a double-well potential, including many-body hard-sphere interactions. Using a mean-field factorization we show that the coherent oscillations due to tunneling are suppressed when the number of atoms exceeds a critical value. An exact quantum solution, in a two-mode approximation, shows that the mean-field solution is modulated by a quantum collapse and revival sequence.

引用

收藏

页码：4318 / 4324

页数：7

相关论文

共 30 条

[1] OBSERVATION OF BOSE-EINSTEIN CONDENSATION IN A DILUTE ATOMIC VAPOR [J].

ANDERSON, MH ;

ENSHER, JR ;

MATTHEWS, MR ;

WIEMAN, CE ;

CORNELL, EA .

SCIENCE, 1995, 269 (5221) :198-201

[2]

Anderson P W., 1984, Basic Notions of Condensed Matter Physics

[3] CONSIDERATIONS ON FLOW OF SUPERFLUID HELIUM [J].

ANDERSON, PW .

REVIEWS OF MODERN PHYSICS, 1966, 38 (02) :298-&

[4] ATOMIC COHERENT STATES IN QUANTUM OPTICS [J].

ARECCHI, FT ;

THOMAS, H ;

GILMORE, R ;

COURTENS, E .

PHYSICAL REVIEW A, 1972, 6 (06) :2211-&

[5] Ground-state properties of magnetically trapped Bose-condensed rubidium gas [J].

Baym, G ;

Pethick, CJ .

PHYSICAL REVIEW LETTERS, 1996, 76 (01) :6-9

[6] THE QUANTUM-THEORY OF LOCAL MODES IN A COUPLED SYSTEM OF NONLINEAR OSCILLATORS [J].

BERNSTEIN, L ;

EILBECK, JC ;

SCOTT, AC .

NONLINEARITY, 1990, 3 (02) :293-323

[7] EVIDENCE OF BOSE-EINSTEIN CONDENSATION IN AN ATOMIC GAS WITH ATTRACTIVE INTERACTIONS [J].

BRADLEY, CC ;

SACKETT, CA ;

TOLLETT, JJ ;

HULET, RG .

PHYSICAL REVIEW LETTERS, 1995, 75 (09) :1687-1690

[8] Quantum theory of two-mode nonlinear directional couplers [J].

Chefles, A ;

Barnett, SM .

JOURNAL OF MODERN OPTICS, 1996, 43 (04) :709-727

[9] BOSE-EINSTEIN CONDENSATION IN A GAS OF SODIUM ATOMS [J].

DAVIS, KB ;

MEWES, MO ;

ANDREWS, MR ;

VANDRUTEN, NJ ;

DURFEE, DS ;

KURN, DM ;

KETTERLE, W .

PHYSICAL REVIEW LETTERS, 1995, 75 (22) :3969-3973

[10] Properties of a Bose-Einstein condensate in an anisotropic harmonic potential [J].

Edwards, M ;

Dodd, RJ ;

Clark, CW ;

Ruprecht, PA ;

Burnett, K .

PHYSICAL REVIEW A, 1996, 53 (04) :R1950-R1953