Nonequilibrium effects of anisotropic compression applied to vortex lattices in Bose-Einstein condensates

P Engels; I Coddington; P. C Haljan; E. A Cornell

doi:10.1103/PhysRevLett.89.100403

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Nonequilibrium effects of anisotropic compression applied to vortex lattices in Bose-Einstein condensates

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Nonequilibrium effects of anisotropic compression applied to vortex lattices in Bose-Einstein condensates

P Engels, I Coddington, P. C Haljan and E. A Cornell

Physical review letters, Vol.89(10), pp.1004031-1004034

04/20/2002

DOI: https://doi.org/10.1103/PhysRevLett.89.100403

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https://hdl.handle.net/2376/113141

PMID: 12225177

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Abstract

Physics - Mesoscale and Nanoscale Physics

Physics - Quantum Gases

Physics - Disordered Systems and Neural Networks

Physics - Other Condensed Matter

Physics - Strongly Correlated Electrons

Physics - Soft Condensed Matter

Physics - Superconductivity

Physics - Statistical Mechanics

Physics - Materials Science

Phys.Rev.Lett.89:100403,2002 We have studied the dynamics of large vortex lattices in a dilute-gas Bose-Einstein condensate. While undisturbed lattices have a regular hexagonal structure, large-amplitude quadrupolar shape oscillations of the condensate are shown to induce a wealth of nonequilibrium lattice dynamics. When exciting an m = -2 mode, we observe shifting of lattice planes, changes of lattice structure, and sheet-like structures in which individual vortices appear to have merged. Excitation of an m = +2 mode dissolves the regular lattice, leading to randomly arranged but still strictly parallel vortex lines.

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Title: Nonequilibrium effects of anisotropic compression applied to vortex lattices in Bose-Einstein condensates
Creators: P Engels
I Coddington
P. C Haljan
E. A Cornell
Publication Details: Physical review letters, Vol.89(10), pp.1004031-1004034
Academic Unit: Physics and Astronomy, Department of
Identifiers: 99900547555801842
Language: English
Resource Type: Journal article