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

被引：96

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 56 条

[1] Semilocal and electroweak strings
Achúcarro, A
Vachaspati, T
[J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2000, 327 (06): : 347 - 426
[2] Skyrmion physics in Bose-Einstein ferromagnets
Al Khawaja, U
Stoof, HTC
[J]. PHYSICAL REVIEW A, 2001, 64 (04): : 14
[3] Skyrmions in a ferromagnetic Bose-Einstein condensate
Al Khawaja, U
Stoof, H
[J]. NATURE, 2001, 411 (6840) : 918 - 920
[4] Semisuperfluid strings in high density QCD
Balachandran, AP
Digal, S
Matsuura, T
[J]. PHYSICAL REVIEW D, 2006, 73 (07):
[5] Non-Abelian topological strings and metastable states in the linear sigma model
Balachandran, AP
Digal, S
[J]. PHYSICAL REVIEW D, 2002, 66 (03)
[6] Stable skyrmions in two-component Bose-Einstein condensates
Battye, RA
Cooper, NR
Sutcliffe, PM
[J]. PHYSICAL REVIEW LETTERS, 2002, 88 (08) : 4 - 080401
[7] RELATIVISTIC SUPERFLUIDS AND VORTEX RINGS
DAVIS, RL
[J]. PHYSICAL REVIEW D, 1989, 40 (12) : 4033 - 4036
[8] GLOBAL STRINGS AND SUPERFLUID VORTICES
DAVIS, RL
SHELLARD, EPS
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (19) : 2021 - 2024
[9] Confined monopoles induced by quantum effects in dense QCD
Eto, Minoru
Nitta, Muneto
Yamamoto, Naoki
[J]. PHYSICAL REVIEW D, 2011, 83 (08):
[10] Instabilities of Non-Abelian Vortices in Dense QCD
Eto, Minoru
Nitta, Muneto
Yamamoto, Naoki
[J]. PHYSICAL REVIEW LETTERS, 2010, 104 (16)

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