Einstein-Bose condensation of Onsager vortices

Rahil N. Valani; Andrew J. Groszek; Tapio P. Simula

doi:10.1088/1367-2630/aac0bb

Einstein-Bose condensation of Onsager vortices

Rahil N. Valani, Andrew J. Groszek, Tapio P. Simula

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

18 Citations (Scopus)

Abstract

We have studied statistical mechanics of a gas of vortices in two dimensions. We introduce a new observable - a condensate fraction of Onsager vortices - to quantify the emergence of the vortex condensate. The condensation of Onsager vortices is most transparently observed in a single vortex species system and occurs due to a competition between solid body rotation (see vortex lattice) and potential flow (see multiple quantum vortex state). We propose an experiment to observe the condensation transition of the vortices in such a single vortex species system.

Original language	English
Article number	053038
Number of pages	16
Journal	New Journal of Physics
Volume	20
Issue number	5
DOIs	https://doi.org/10.1088/1367-2630/aac0bb
Publication status	Published - 1 May 2018

Keywords

absolute negative temperature
Bose-Einstein condensation
Onsager vortex
quantised vortices
quantum turbulence
superfluidity
vortex-particle duality

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10.1088/1367-2630/aac0bb

249269073-oaFinal published version, 1.96 MBLicence: CC BY

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title = "Einstein-Bose condensation of Onsager vortices",

abstract = "We have studied statistical mechanics of a gas of vortices in two dimensions. We introduce a new observable - a condensate fraction of Onsager vortices - to quantify the emergence of the vortex condensate. The condensation of Onsager vortices is most transparently observed in a single vortex species system and occurs due to a competition between solid body rotation (see vortex lattice) and potential flow (see multiple quantum vortex state). We propose an experiment to observe the condensation transition of the vortices in such a single vortex species system.",

keywords = "absolute negative temperature, Bose-Einstein condensation, Onsager vortex, quantised vortices, quantum turbulence, superfluidity, vortex-particle duality",

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KW - Onsager vortex

KW - quantised vortices

KW - quantum turbulence

KW - superfluidity

KW - vortex-particle duality

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Einstein-Bose condensation of Onsager vortices

Abstract

Keywords

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Determining the mass and geometric phase of a superfluid vortex

Life is swirl in flatland---2D turbulence in a superfluid

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Einstein-Bose condensation of Onsager vortices

Abstract

Keywords

Access to Document

Other files and links

Projects

Determining the mass and geometric phase of a superfluid vortex

Life is swirl in flatland---2D turbulence in a superfluid

Cite this