Energy level-splitting of ground state in spinor Bose-Einstein condensate with large number of atoms

被引：2

作者：

Xu Yan ^{[1
]}

Jia Duo-Je ^{[2
]}

Li Zhao-Xin ^{[1
]}

Hou Feng-Chao ^{[1
]}

Tan Lei ^{[3
]}

Zhang Lu-Yin ^{[1
]}

机构：

[1] Shandong Univ Sci & Technol, Coll Nat Sci, Qingdao 266510, Peoples R China

[2] NW Normal Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China

[3] Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China

来源：

ACTA PHYSICA SINICA | 2009年 / 58卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Bose-Einstein condensate; Gross-Pitaevskii functional; single-mode approximation;

D O I：

10.7498/aps.58.55

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the mode deviation effect of a spin-1 Bose-Einstein condensate with large number of atoms in optical trap beyond the single-mode approximation. Based on the effective Hamiltonian with nondegenerate level of the collective spin states, we get the mode deviation factor and explicitly calculate the level splitting energy as function of the atom number N.

引用

页码：55 / 60

页数：6

共 16 条

[1] Skyrmions in a ferromagnetic Bose-Einstein condensate [J].

Al Khawaja, U ;

Stoof, H .

NATURE, 2001, 411 (6840) :918-920

[2] Simple determination of Na2 scattering lengths using observed bound levels at the ground state asymptote [J].

Crubellier, A ;

Dulieu, O ;

Masnou-Seeuws, F ;

Elbs, M ;

Knöckel, H ;

Tiemann, E .

EUROPEAN PHYSICAL JOURNAL D, 1999, 6 (02) :211-220

[3] Nondegenerated spin states of a trapped spinor Bose gas beyond mean field theory [J].

Jia, Duoje ;

Xu, Yan ;

Li, Zhaoxin ;

Hou, Fengchao ;

Chen, Zhaoyang .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2008, 22 (03) :189-204

[4] Exact eigenstates and magnetic response of spin-1 and spin-2 Bose-Einstein condensates [J].

Koashi, M ;

Ueda, M .

PHYSICAL REVIEW LETTERS, 2000, 84 (06) :1066-1069

[5] Quantum spins mixing in spinor Bose-Einstein condensates [J].

Law, CK ;

Pu, H ;

Bigelow, NP .

PHYSICAL REVIEW LETTERS, 1998, 81 (24) :5257-5261

[6] Production of two overlapping Bose-Einstein condensates by sympathetic cooling [J].

Myatt, CJ ;

Burt, EA ;

Ghrist, RW ;

Cornell, EA ;

Wieman, CE .

PHYSICAL REVIEW LETTERS, 1997, 78 (04) :586-589

[7] Bose-Einstein condensation with internal degrees of freedom in alkali atom gases [J].

Ohmi, T ;

Machida, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1998, 67 (06) :1822-1825

[8]

Parkins A. S., 1998, Physics Reports, V303, P1, DOI 10.1016/S0370-1573(98)00014-3

[9] Topological phase preparation in a pair of atomic Bose-Einstein condensates [J].

Ruostekoski, J .

PHYSICAL REVIEW A, 2000, 61 (04) :4

[10] Optical confinement of a Bose-Einstein condensate [J].

Stamper-Kurn, DM ;

Andrews, MR ;

Chikkatur, AP ;

Inouye, S ;

Miesner, HJ ;

Stenger, J ;

Ketterle, W .

PHYSICAL REVIEW LETTERS, 1998, 80 (10) :2027-2030

← 1 2 →