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Noncommutative field theory of the Tkachenko mode: Symmetries and decay rate

Journal Article · · Physical Review Research

We construct an effective field theory describing the collective Tkachenko oscillation mode of a vortex lattice in a two-dimensional rotating Bose-Einstein condensate in the long-wavelength regime. The theory has the form of a noncommutative field theory of a Nambu-Goldstone boson, which exhibits a noncommutative version of dipole symmetry. From the effective field theory, we show that, at zero temperature, the decay width Γ of the Tkachenko mode scales with its energy E as Γ E 3 in the low-energy limit. We also discuss the width of the Tkachenko mode at a small temperature.

Published by the American Physical Society 2024
Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0009924
OSTI ID:
2311911
Journal Information:
Physical Review Research, Journal Name: Physical Review Research Journal Issue: 1 Vol. 6; ISSN 2643-1564; ISSN PPRHAI
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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