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

Patrik Öhberg; Ewan M. Wright

doi:10.1103/PhysRevLett.123.250402

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

Patrik Öhberg, Ewan M. Wright

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21 Scopus citations

Abstract

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.

Original language	English (US)
Article number	250402
Journal	Physical review letters
Volume	123
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.123.250402
State	Published - Dec 20 2019

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.123.250402

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

Abstract

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