Absence of fragmentation of the condensate in a model for bosons in a trap

被引：10

作者：

Elgaroy, O

Pethick, CJ

机构：

[1] Univ Oslo, Dept Phys, N-0316 Oslo, Norway

[2] NORDITA, DK-2100 Copenhagen, Denmark

来源：

PHYSICAL REVIEW A | 1999年 / 59卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.59.1711

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Possible fragmentation of a Bose-Einstein condensate with negative scattering length is investigated using a simple two-level model. Our results indicate that fragmentation does not take place for values of the coupling for which the system is metastable. We also comment on the possibility of realizing a fragmented condensate in trapping potentials other than an harmonic one. [S1050-2947(99)04102-5].

引用

收藏

页码：1711 / 1714

页数：4

相关论文

共 11 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] Bose-Einstein condensation of lithium: Observation of limited condensate number [J].

Bradley, CC ;

Sackett, CA ;

Hulet, RG .

PHYSICAL REVIEW LETTERS, 1997, 78 (06) :985-989

[3] 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

[4] 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

[5] Variational study of dilute bose condensate in a harmonic trap [J].

Fetter, AL .

JOURNAL OF LOW TEMPERATURE PHYSICS, 1997, 106 (5-6) :643-652

[6] Stability of Bose condensed atomic Li-7 [J].

Houbiers, M ;

Stoof, HTC .

PHYSICAL REVIEW A, 1996, 54 (06) :5055-5066

[7] VALIDITY OF MANY-BODY APPROXIMATION METHODS FOR A SOLVABLE MODEL .I. EXACT SOLUTIONS AND PERTURBATION THEORY [J].

LIPKIN, HJ ;

MESHKOV, N ;

GLICK, AJ .

NUCLEAR PHYSICS, 1965, 62 (02) :188-&

[8]

PETHICK CJ, 1997, BOUSEEINSTEIN CONDEN

[9] TIME-DEPENDENT SOLUTION OF THE NONLINEAR SCHRODINGER-EQUATION FOR BOSE-CONDENSED TRAPPED NEUTRAL ATOMS [J].

RUPRECHT, PA ;

HOLLAND, MJ ;

BURNETT, K ;

EDWARDS, M .

PHYSICAL REVIEW A, 1995, 51 (06) :4704-4711

[10] ATOMIC BOSE-GAS WITH A NEGATIVE SCATTERING LENGTH [J].

STOOF, HTC .

PHYSICAL REVIEW A, 1994, 49 (05) :3824-3830