Rotational properties of trapped bosons

被引：13

作者：

Brosens, F

Devreese, JT

Lemmens, LF

机构：

[1] EINDHOVEN UNIV TECHNOL, NL-5600 MB EINDHOVEN, NETHERLANDS

[2] UNIV ANTWERP, RUCA, DEPT NATUURKUNDE, B-2020 ANTWERP, BELGIUM

来源：

PHYSICAL REVIEW A | 1997年 / 55卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.55.2453

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Based on the Hellman-Feynman theorem, it is shown that the average square radius of a cloud of interacting bosons in a parabolic well can be derived from their free energy. As an application, the temperature dependence of the moment of inertia of noninteracting bosons in a parabolic trap is determined as a function of the number of bosons. Well below the critical condensation temperature, the Bose-Einstein statistics are found to substantially reduce the moment of inertia of this system, as compared to a gas of ''distinguishable'' particles in a parabolic well.

引用

收藏

页码：2453 / 2456

页数：4

相关论文

共 22 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 IN AN EXTERNAL POTENTIAL [J].

BAGNATO, V ;

PRITCHARD, DE ;

KLEPPNER, D .

PHYSICAL REVIEW A, 1987, 35 (10) :4354-4358

[3]

Baym G., 1969, MATH METHODS SOLID S

[4] 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

[5] Canonical Bose-Einstein condensation in a parabolic well [J].

Brosens, F ;

Devreese, JT ;

Lemmens, LF .

SOLID STATE COMMUNICATIONS, 1996, 100 (02) :123-127

[6] FERMION DIFFUSION AND THE FEYNMAN-KAC FUNCTIONAL FOR INTERACTING FERMIONS [J].

BROSENS, F ;

DEVREESE, JT ;

LEMMENS, LF .

SOLID STATE COMMUNICATIONS, 1995, 96 (03) :137-141

[7] 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

[8] ON THE BOSE-EINSTEIN CONDENSATION [J].

DEGROOT, SR ;

HOOYMAN, GJ ;

TENSELDAM, CA .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1950, 203 (1073) :266-286

[9]

FEYNMAN RP, 1972, STAT MECH SET LECT, P62

[10] ON BOSE-EINSTEIN CONDENSATION IN HARMONIC TRAPS [J].

GROSSMANN, S ;

HOLTHAUS, M .

PHYSICS LETTERS A, 1995, 208 (03) :188-192