Four-boson scale near a Feshbach resonance

被引：75

作者：

Yamashita, M. T. ^{[1
]}

Tomio, Lauro

Delfino, A.

Frederico, T.

机构：

[1] Univ Estadual Paulista, BR-18409010 Itapeva, SP, Brazil

[2] Univ Estadual Paulista, Inst Fis Teor, BR-01405900 Sao Paulo, Brazil

[3] Univ Fed Fluminense, Inst Fis, BR-24210900 Niteroi, RJ, Brazil

[4] Ctr Tecn Aeroesp, Inst Tecnol Aeronaut, Dept Fis, BR-12228900 Sao Jose Dos Campos, SP, Brazil

来源：

EUROPHYSICS LETTERS | 2006年 / 75卷 / 04期

关键词：

D O I：

10.1209/epl/i2006-10141-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that an independent four-body momentum scale mu((4)) drives the tetramer binding energy for fixed trimer energy (or three-body scale mu((3))) and large scattering length (a). The three- and four-body forces from the one-channel reduction of the atomic interaction near a Feshbach resonance disentangle mu((4)) and mu((3)). The four-body independent scale is also manifested through a family of Tjon lines, with slope given by mu((4))/mu((3)) for a(-1) = 0. There is the possibility of a new renormalization group limit cycle due to the new scale.

引用

页码：555 / 561

页数：7

共 39 条

[1] EFIMOV AND THOMAS EFFECTS AND THE MODEL DEPENDENCE OF 3-PARTICLE OBSERVABLES IN 2 AND 3 DIMENSIONS [J].

ADHIKARI, SK ;

DELFINO, A ;

FREDERICO, T ;

GOLDMAN, ID ;

TOMIO, L .

PHYSICAL REVIEW A, 1988, 37 (10) :3666-3673

[2] RENORMALIZATION-GROUP IN POTENTIAL SCATTERING [J].

ADHIKARI, SK ;

FREDERICO, T .

PHYSICAL REVIEW LETTERS, 1995, 74 (23) :4572-4575

[3] PERTURBATIVE RENORMALIZATION IN QUANTUM FEW-BODY PROBLEMS [J].

ADHIKARI, SK ;

FREDERICO, T ;

GOLDMAN, ID .

PHYSICAL REVIEW LETTERS, 1995, 74 (04) :487-491

[4] A CLASS OF EXACTLY SOLVABLE 3-BODY QUANTUM-MECHANICAL PROBLEMS AND THE UNIVERSAL LOW-ENERGY BEHAVIOR [J].

ALBEVERIO, S ;

HOEGHKROHN, R ;

WU, TT .

PHYSICS LETTERS A, 1981, 83 (03) :105-109

[5] Universal aspects of Efimov states and light halo nuclei [J].

Amorim, AEA ;

Frederico, T ;

Tomio, L .

PHYSICAL REVIEW C, 1997, 56 (05) :R2378-R2381

[6] Three-body recombination in Bose gases with large scattering length [J].

Bedaque, PF ;

Braaten, E ;

Hammer, HW .

PHYSICAL REVIEW LETTERS, 2000, 85 (05) :908-911

[7] Renormalization of the three-body system with short-range interactions [J].

Bedaque, PF ;

Hammer, HW ;

van Kolck, U .

PHYSICAL REVIEW LETTERS, 1999, 82 (03) :463-467

[8] Efimov states in a Bose-Einstein condensate near a Feshbach resonance [J].

Braaten, E ;

Hammer, HW ;

Kusunoki, M .

PHYSICAL REVIEW LETTERS, 2003, 90 (17) :4-170402

[9] Three-body recombination into deep bound states in a Bose gas with large scattering length [J].

Braaten, E ;

Hammer, HW .

PHYSICAL REVIEW LETTERS, 2001, 87 (16) :art. no.-160407

[10] Observation of Feshbach-like resonances in collisions between ultracold molecules -: art. no. 123201 [J].

Chin, C ;

Kraemer, T ;

Mark, M ;

Herbig, J ;

Waldburger, P ;

Nägerl, HC ;

Grimm, R .

PHYSICAL REVIEW LETTERS, 2005, 94 (12)

← 1 2 3 4 →