Hysteresis and metastability of Bose-Einstein-condensed clouds of atoms confined in ring potentials

被引：8

作者：

Roussou, A. ^{[1
]}

Tsibidis, G. D. ^{[2
]}

Smyrnakis, J. ^{[3
]}

Magiropoulos, M. ^{[3
]}

Efremidis, Nikolaos K. ^{[1
]}

Jackson, A. D. ^{[4
,5
]}

Kavoulakis, G. M. ^{[3
]}

机构：

[1] Univ Crete, Dept Appl Math, GR-71004 Iraklion, Greece

[2] Fdn Res & Technol FORTH, IESL, Iraklion 70013, Crete, Greece

[3] Technol Educ Inst Crete, GR-71004 Iraklion, Greece

[4] Niels Bohr Inst, DK-2100 Copenhagen O, Denmark

[5] Niels Bohr Int Acad, Copenhagen O, Denmark

来源：

PHYSICAL REVIEW A | 2015年 / 91卷 / 02期

关键词：

SUPERFLUIDITY; GASES;

D O I：

10.1103/PhysRevA.91.023613

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We consider a Bose-Einstein-condensed cloud of atoms which rotate in a toroidal or annular potential. Assuming one-dimensional motion, we evaluate the critical frequencies associated with the effect of hysteresis and the critical coupling for stability of the persistent currents. We perform these calculations using both the mean-field approximation and the method of numerical diagonalization of the many-body Hamiltonian which includes corrections due to the finiteness of the atom number.

引用

页数：6

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