Structure and stability of vortices in dilute Bose-Einstein condensates at ultralow temperatures

S. M M Virtanen; T. P. Simula; M. M. Salomaa

doi:10.1103/PhysRevLett.86.2704

Structure and stability of vortices in dilute Bose-Einstein condensates at ultralow temperatures

S. M M Virtanen, T. P. Simula, M. M. Salomaa

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

48 Citations (Scopus)

Abstract

The structure of a cylindrically trapped, dilute atomic Bose-Einstein condensate penetrated by a vortex line was computed within self-consistent mean-field theories. It was found that the vortex state is locally energetically stable in a nonrotating system even in the zero-temperature limit. The thermal gas concentrated in the vortex core exhibited a crucial effect in stabilizing the vortex state even at ultralow temperatures, due to a residual noncondensate fraction present in interacting systems in the zero-temperature limit.

Original language	English
Pages (from-to)	2704-2707
Number of pages	4
Journal	Physical Review Letters
Volume	86
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.86.2704
Publication status	Published - 26 Mar 2001
Externally published	Yes

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10.1103/PhysRevLett.86.2704

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title = "Structure and stability of vortices in dilute Bose-Einstein condensates at ultralow temperatures",

abstract = "The structure of a cylindrically trapped, dilute atomic Bose-Einstein condensate penetrated by a vortex line was computed within self-consistent mean-field theories. It was found that the vortex state is locally energetically stable in a nonrotating system even in the zero-temperature limit. The thermal gas concentrated in the vortex core exhibited a crucial effect in stabilizing the vortex state even at ultralow temperatures, due to a residual noncondensate fraction present in interacting systems in the zero-temperature limit.",

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AU - Simula, T. P.

AU - Salomaa, M. M.

PY - 2001/3/26

Y1 - 2001/3/26

N2 - The structure of a cylindrically trapped, dilute atomic Bose-Einstein condensate penetrated by a vortex line was computed within self-consistent mean-field theories. It was found that the vortex state is locally energetically stable in a nonrotating system even in the zero-temperature limit. The thermal gas concentrated in the vortex core exhibited a crucial effect in stabilizing the vortex state even at ultralow temperatures, due to a residual noncondensate fraction present in interacting systems in the zero-temperature limit.

AB - The structure of a cylindrically trapped, dilute atomic Bose-Einstein condensate penetrated by a vortex line was computed within self-consistent mean-field theories. It was found that the vortex state is locally energetically stable in a nonrotating system even in the zero-temperature limit. The thermal gas concentrated in the vortex core exhibited a crucial effect in stabilizing the vortex state even at ultralow temperatures, due to a residual noncondensate fraction present in interacting systems in the zero-temperature limit.

UR - https://www.scopus.com/pages/publications/0035952917

U2 - 10.1103/PhysRevLett.86.2704

DO - 10.1103/PhysRevLett.86.2704

M3 - Letter

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

ER -

Structure and stability of vortices in dilute Bose-Einstein condensates at ultralow temperatures

Abstract

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