Three-body problem in a dilute Bose-Einstein condensate -: art. no. 210404

被引：111

作者：

Köhler, T ^{[1
]}

机构：

[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.89.210404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We derive the explicit three-body contact potential for a dilute condensed Bose gas from microscopic theory. The three-body coupling constant exhibits the general form predicted by Wu [Phys. Rev. 115, 1390 (1959)] and is determined in terms of the amplitudes of two- and three-body collisions in vacuum. In the present form, the coupling constant becomes accessible to quantitative studies which should provide the crucial link between few-body collisions and the stability of condensates with attractive two-body forces.

引用

页数：4

共 27 条

[1] LOW-ENERGY BEHAVIOR OF FEW-BODY SCATTERING-AMPLITUDES [J].

ADHIKARI, SK .

PHYSICAL REVIEW D, 1973, 8 (04) :1195-1204

[2] LOW-ENERGY EXPANSION FOR ELASTIC 3-BODY SCATTERING [J].

AMADO, RD ;

RUBIN, MH .

PHYSICAL REVIEW LETTERS, 1970, 25 (03) :194-&

[3]

[Anonymous], 1982, SCATTERING THEORY WA, DOI DOI 10.1007/978-3-642-88128-2

[4] Dilute Bose-Einstein condensate with large scattering length [J].

Braaten, E ;

Hammer, HW ;

Mehen, T .

PHYSICAL REVIEW LETTERS, 2002, 88 (04) :4-404014

[5] Nonuniversal effects in the homogeneous Bose gas [J].

Braaten, E ;

Hammer, HW ;

Hermans, S .

PHYSICAL REVIEW A, 2001, 63 (06) :12

[6] Quantum corrections to the energy density of a homogeneous Bose gas [J].

Braaten, E ;

Nieto, A .

EUROPEAN PHYSICAL JOURNAL B, 1999, 11 (01) :143-159

[7]

BRAATEN E, 2002, PHYS REV LETT, V89

[8] Coherence, correlations, and collisions: What one learns about Bose-Einstein condensates from their decay [J].

Burt, EA ;

Ghrist, RW ;

Myatt, CJ ;

Holland, MJ ;

Cornell, EA ;

Wieman, CE .

PHYSICAL REVIEW LETTERS, 1997, 79 (03) :337-340

[9] Stable 85Rb Bose-Einstein condensates with widely tunable interactions [J].

Cornish, SL ;

Claussen, NR ;

Roberts, JL ;

Cornell, EA ;

Wieman, CE .

PHYSICAL REVIEW LETTERS, 2000, 85 (09) :1795-1798

[10] Theory of Bose-Einstein condensation in trapped gases [J].

Dalfovo, F ;

Giorgini, S ;

Pitaevskii, LP ;

Stringari, S .

REVIEWS OF MODERN PHYSICS, 1999, 71 (03) :463-512

← 1 2 3 →