Precision Monte Carlo test of the Hartree-Fock approximation for a trapped Bose gas

被引：67

作者：

Holzmann, M

Krauth, W

Naraschewski, M

机构：

[1] Ecole Normale Super, CNRS, Lab Phys Stat, F-75231 Paris 05, France

[2] Ecole Normale Super, Lab Kastler Brossel, F-75231 Paris 05, France

[3] Harvard Univ, Dept Phys, Jefferson Lab, Cambridge, MA 02138 USA

[4] Harvard Univ, Harvard Smithsonian Ctr Astrophys, ITAMP, Cambridge, MA 02138 USA

来源：

PHYSICAL REVIEW A | 1999年 / 59卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.59.2956

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We compare the semiclassical Hartree-Fock approximation for a trapped Bose gas to a direct path-integral quantum Monte Carlo simulation. The chosen parameters correspond to current Rb-87 experiments. We observe corrections to the mean-field density profile: the path-integral calculation reveals an increase of the number of condensed particles, which is of the same order as a previously computed result for a homogeneous system. We discuss the experimental observability of the effect and propose a method to analyze data of in situ experiments. [S1050-2947(99)02404-X].

引用

页码：2956 / 2961

页数：6

共 50 条

[1] Quantum corrections to the semiclassical Hartree-Fock theory of a harmonically trapped Bose gas
D. Schumayer
S. Cormack
B.P. van Zyl
J. Farry
A. Collin
E. Zaremba
D.A.W. Hutchinson
[J]. The European Physical Journal D, 2012, 66
[2] Quantum corrections to the semiclassical Hartree-Fock theory of a harmonically trapped Bose gas
Schumayer, D.
Cormack, S.
van Zyl, B. P.
Farry, J.
Collin, A.
Zaremba, E.
Hutchinson, D. A. W.
[J]. EUROPEAN PHYSICAL JOURNAL D, 2012, 66 (08):
[3] Hartree-Fock quantum Monte Carlo method
HUANG Hongxin
2. Department of Chemistry
3. Department of Chemistry
[J]. Science Bulletin, 1997, (13) : 1090 - 1093
[4] Hartree-Fock量子Monte Carlo方法
黄宏新
谢青季
曹泽星
刘述斌
[J]. 科学通报, 1997, (11) : 1171 - 1174
[5] Hartree-Fock quantum Monte Carlo method
Huang, HX
Xie, QJ
Cao, ZX
Liu, SB
[J]. CHINESE SCIENCE BULLETIN, 1997, 42 (13): : 1090 - 1093
[6] A Hartree-Fock study of a bose condensed gas
Ohberg, P
Stenholm, S
[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1997, 30 (12) : 2749 - 2760
[7] Thermodynamic properties of trapped, two-dimensional interacting Bose gases in Hartree-Fock approximation
Kim, JG
Lee, EK
[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1999, 32 (23) : 5575 - 5581
[8] The Condensed Fraction of a Homogeneous Dilute Bose Gas Within the Improved Hartree-Fock Approximation
Nguyen Van Thu
Berx, Jonas
[J]. JOURNAL OF STATISTICAL PHYSICS, 2022, 188 (02)
[9] The Casimir Effect in a Dilute Bose Gas in Canonical Ensemble within Improved Hartree-Fock Approximation
Nguyen Van Thu
[J]. JOURNAL OF LOW TEMPERATURE PHYSICS, 2021, 204 (1-2) : 12 - 23
[10] THE HARTREE-FOCK SENIORITY APPROXIMATION
GOMEZ, JMG
PRIETO, C
[J]. NUCLEAR PHYSICS A, 1986, 452 (03) : 462 - 476

← 1 2 3 4 5 →