Topological classification of vortex-core structures of spin-1 Bose-Einstein condensates

Shingo Kobayashi; Yuki Kawaguchi; Muneto Nitta; Masahito Ueda

doi:10.1103/PhysRevA.86.023612

Topological classification of vortex-core structures of spin-1 Bose-Einstein condensates

Shingo Kobayashi, Yuki Kawaguchi, Muneto Nitta, Masahito Ueda

Faculty of Business and Commerce

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

We classify vortex-core structures according to the topology of the order parameter space. We develop a method to characterize how the order parameter changes inside the vortex core. We apply it to spin-1 Bose-Einstein condensates and show that the vortex-core structures are classified by winding numbers that are locally defined in the core region. We also show that a vortex-core structure with a nontrivial winding number can be stabilized under a negative quadratic Zeeman effect.

Original language	English
Article number	023612
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	86
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.86.023612
Publication status	Published - 2012 Aug 13

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.86.023612

Cite this

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abstract = "We classify vortex-core structures according to the topology of the order parameter space. We develop a method to characterize how the order parameter changes inside the vortex core. We apply it to spin-1 Bose-Einstein condensates and show that the vortex-core structures are classified by winding numbers that are locally defined in the core region. We also show that a vortex-core structure with a nontrivial winding number can be stabilized under a negative quadratic Zeeman effect.",

author = "Shingo Kobayashi and Yuki Kawaguchi and Muneto Nitta and Masahito Ueda",

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AB - We classify vortex-core structures according to the topology of the order parameter space. We develop a method to characterize how the order parameter changes inside the vortex core. We apply it to spin-1 Bose-Einstein condensates and show that the vortex-core structures are classified by winding numbers that are locally defined in the core region. We also show that a vortex-core structure with a nontrivial winding number can be stabilized under a negative quadratic Zeeman effect.

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Topological classification of vortex-core structures of spin-1 Bose-Einstein condensates

Abstract

ASJC Scopus subject areas

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