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2015 | 13 | 1 |
Tytuł artykułu

Composite structure of vortices in two-component Bose-Einstein condensate

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In contrast to one-component Bose-Einstein condensate case, the vortices in two-component condensate can have various complicated structures. The vortices in a space-homogeneous Bose-Einstein condensate have been studied in this paper. It is shown that the vortex structure is described by three dimensionless parameters. This is totally different from the usual one-component condensate case,where an isolated vortex is described by a parameterless dimensionless equation. The two-component vortex structure strongly depends on the sign of “interaction” constant of the components. A few types of vortices with different qualitative structure are explored. We show that the “super-density vortices” can exist, when the “interaction” constant is positive. The “super-density vortices” have the near-axis density greater than the equilibrium density of a homogeneous space Bose-Einstein condensate. We also show that the vortices with opposite direction of the condensate component rotation near the axis and far off the axis can exist.
Wydawca

Czasopismo
Rocznik
Tom
13
Numer
1
Opis fizyczny
Daty
otrzymano
2015-03-21
zaakceptowano
2015-09-11
online
2015-10-26
Twórcy
  • A.I. Akhiezer Institute for Theoretical Physics,
    NSC “Kharkiv Institute of Physics and Technology” 1, Akademichna
    Str., Kharkiv UA-61108, Ukraine
  • Technology” 1, Akademichna Str., Kharkiv UA-61108, Ukraine
  • A.I. Akhiezer Institute for Theoretical Physics,
    NSC “Kharkiv Institute of Physics and Technology” 1, Akademichna
    Str., Kharkiv UA-61108, Ukraine
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1515_phys-2015-0036
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