Vortex lattices in three-component Bose-Einstein condensates under rotation: Simulating colorful vortex lattices in a color superconductor

Mattia Cipriani, Muneto Nitta

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We study vortex lattices in three-component Bose-Einstein condensates (BECs) under rotation, where three kinds of fractional vortices winding one of three components are present. Unlike the cases of two-component BECs where the phases of square and triangular lattices are present depending on the intercomponent coupling constant and the rotation speed, we find triangular ordered "colorful" vortex lattices where three kinds of fractional vortices are placed in order without defects, in all parameter regions where the intercomponent coupling g is less than the intracomponent coupling g. When g>g on the other hand, we find the phase separation: In a region where one component is present, the other two components must vanish, where we find ghost vortices in these two components whose positions are separated. In the boundary g=g, the accidental U(3) symmetry is present, in which case two vortices in different components are close to each other in some regions.

Original languageEnglish
Article number013634
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume88
Issue number1
DOIs
Publication statusPublished - 2013 Jul 29

Fingerprint

Bose-Einstein condensates
vortices
color
ghosts
defects
symmetry

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

@article{b3d6138c9b3a47b09bf30a0a58229abc,
title = "Vortex lattices in three-component Bose-Einstein condensates under rotation: Simulating colorful vortex lattices in a color superconductor",
abstract = "We study vortex lattices in three-component Bose-Einstein condensates (BECs) under rotation, where three kinds of fractional vortices winding one of three components are present. Unlike the cases of two-component BECs where the phases of square and triangular lattices are present depending on the intercomponent coupling constant and the rotation speed, we find triangular ordered {"}colorful{"} vortex lattices where three kinds of fractional vortices are placed in order without defects, in all parameter regions where the intercomponent coupling g′ is less than the intracomponent coupling g. When g>g′ on the other hand, we find the phase separation: In a region where one component is present, the other two components must vanish, where we find ghost vortices in these two components whose positions are separated. In the boundary g=g′, the accidental U(3) symmetry is present, in which case two vortices in different components are close to each other in some regions.",
author = "Mattia Cipriani and Muneto Nitta",
year = "2013",
month = "7",
day = "29",
doi = "10.1103/PhysRevA.88.013634",
language = "English",
volume = "88",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "1",

}

TY - JOUR

T1 - Vortex lattices in three-component Bose-Einstein condensates under rotation

T2 - Simulating colorful vortex lattices in a color superconductor

AU - Cipriani, Mattia

AU - Nitta, Muneto

PY - 2013/7/29

Y1 - 2013/7/29

N2 - We study vortex lattices in three-component Bose-Einstein condensates (BECs) under rotation, where three kinds of fractional vortices winding one of three components are present. Unlike the cases of two-component BECs where the phases of square and triangular lattices are present depending on the intercomponent coupling constant and the rotation speed, we find triangular ordered "colorful" vortex lattices where three kinds of fractional vortices are placed in order without defects, in all parameter regions where the intercomponent coupling g′ is less than the intracomponent coupling g. When g>g′ on the other hand, we find the phase separation: In a region where one component is present, the other two components must vanish, where we find ghost vortices in these two components whose positions are separated. In the boundary g=g′, the accidental U(3) symmetry is present, in which case two vortices in different components are close to each other in some regions.

AB - We study vortex lattices in three-component Bose-Einstein condensates (BECs) under rotation, where three kinds of fractional vortices winding one of three components are present. Unlike the cases of two-component BECs where the phases of square and triangular lattices are present depending on the intercomponent coupling constant and the rotation speed, we find triangular ordered "colorful" vortex lattices where three kinds of fractional vortices are placed in order without defects, in all parameter regions where the intercomponent coupling g′ is less than the intracomponent coupling g. When g>g′ on the other hand, we find the phase separation: In a region where one component is present, the other two components must vanish, where we find ghost vortices in these two components whose positions are separated. In the boundary g=g′, the accidental U(3) symmetry is present, in which case two vortices in different components are close to each other in some regions.

UR - http://www.scopus.com/inward/record.url?scp=84881501707&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84881501707&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.88.013634

DO - 10.1103/PhysRevA.88.013634

M3 - Article

AN - SCOPUS:84881501707

VL - 88

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

IS - 1

M1 - 013634

ER -