Quantum Time Crystals and Interacting Gauge Theories in Atomic Bose-Einstein Condensates

Quantum Time Crystals and Interacting Gauge Theories in Atomic Bose-Einstein Condensates

We study the dynamics of a Bose-Einstein condensate trapped circumferentially on a ring, and which is governed by an interacting gauge theory. We show that the associated density-dependent gauge potential and concomitant current nonlinearity permits a ground state in the form of a rotating chiral br...

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Veröffentlicht in:Physical review letters 2019-12, Vol.123 (25), p.250402-250402, Article 250402
Hauptverfasser: Öhberg, Patrik, Wright, Ewan M
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Sprache:eng
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Bose-Einstein condensates
Gauge theory
Matter & antimatter
Nonlinearity
Solitary waves
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description We study the dynamics of a Bose-Einstein condensate trapped circumferentially on a ring, and which is governed by an interacting gauge theory. We show that the associated density-dependent gauge potential and concomitant current nonlinearity permits a ground state in the form of a rotating chiral bright soliton. This chiral soliton is constrained to move in one direction by virtue of the current nonlinearity, and represents a time crystal in the same vein as Wilczek's original proposal.
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source American Physical Society Journals; EZB-FREE-00999 freely available EZB journals
subjects Bose-Einstein condensates
Gauge theory
Matter & antimatter
Nonlinearity
Solitary waves
title Quantum Time Crystals and Interacting Gauge Theories in Atomic Bose-Einstein Condensates
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