Interaction of half-quantized vortices in two-component Bose-Einstein condensates

被引：95

作者：

Eto, Minoru ^{[1
]}

Kasamatsu, Kenichi ^{[2
]}

Nitta, Muneto ^{[3
,4
]}

Takeuchi, Hiromitsu ^{[5
]}

Tsubota, Makoto ^{[6
]}

机构：

[1] Yamagata Univ, Dept Phys, Yamagata 9908560, Japan

[2] Kinki Univ, Dept Phys, Higashiosaka, Osaka 5778502, Japan

[3] Keio Univ, Dept Phys, Kanagawa 2238521, Japan

[4] Keio Univ, Res & Educ Ctr Nat Sci, Kanagawa 2238521, Japan

[5] Hiroshima Univ, Grad Sch Integrated Arts & Sci, Higashihiroshima 7398521, Japan

[6] Osaka City Univ, Dept Phys, Sumiyoshi Ku, Osaka 5588585, Japan

来源：

PHYSICAL REVIEW A | 2011年 / 83卷 / 06期

关键词：

GLOBAL STRINGS; VORTEX;

D O I：

10.1103/PhysRevA.83.063603

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the asymptotic interaction between two half-quantized vortices in two-component Bose-Einstein condensates. When two vortices in different components are placed at distance 2R, the leading order of the force between them is found to be (ln R/xi - 1/2)/R-3,in contrast to 1/R between vortices placed in the same component. We derive it analytically using the Abrikosov ansatz and the profile functions of the vortices, confirmed numerically with the Gross-Pitaevskii model. We also find that the short-range cutoff of the intervortex potential linearly depends on the healing length.

引用

页数：8

共 50 条

[41] Free expansion of Bose-Einstein condensates with quantized vortices
Dalfovo, F
Modugno, M
PHYSICAL REVIEW A, 2000, 61 (02): : 5
[42] Multiply quantized vortices in trapped Bose-Einstein condensates
Lundh, E
PHYSICAL REVIEW A, 2002, 65 (04): : 6
[43] Free expansion of Bose-Einstein condensates with quantized vortices
Dalfovo, Franco
Modugno, Michele
Physical Review A - Atomic, Molecular, and Optical Physics, 2000, 61 (02): : 236051 - 236055
[44] Quantized vortices in superfluid helium and Bose-Einstein condensates
Tsubota, Makoto
Third 21COE Symposium: Astrophysics as Interdisciplinary Science, 2006, 31 : 88 - 94
[45] Confinement of half-quantized vortices in coherently coupled Bose-Einstein condensates: Simulating quark confinement in a QCD-like theory
Eto, Minoru
Nitta, Muneto
PHYSICAL REVIEW A, 2018, 97 (02)
[46] Interaction of dark-bright solitons in two-component Bose-Einstein condensates
Rajendran, S.
Muruganandam, P.
Lakshmanan, M.
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2009, 42 (14)
[47] Spin textures in rotating two-component Bose-Einstein condensates
Kasamatsu, K
Tsubota, M
Ueda, M
PHYSICAL REVIEW A, 2005, 71 (04):
[48] Onsager Vortex Formation in Two-component Bose-Einstein Condensates
Han, Junsik
Tsubota, Makoto
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2018, 87 (06)
[49] Countersuperflow instability in miscible two-component Bose-Einstein condensates
Ishino, Shungo
Tsubota, Makoto
Takeuchi, Hiromitsu
PHYSICAL REVIEW A, 2011, 83 (06):
[50] A study of coherently coupled two-component Bose-Einstein condensates
Marta Abad
Alessio Recati
The European Physical Journal D, 2013, 67

← 1 2 3 4 5 →