Bath induced phase transition in a Luttinger liquid
arXiv:2210.01590 · doi:10.1103/PhysRevB.107.165113
Abstract
We study an XXZ spin chain, where each spin is coupled to an independent ohmic bath of harmonic oscillators at zero temperature. Using bosonization and numerical techniques, we show the existence of two phases separated by an Kosterlitz-Thouless (KT) transition. At low coupling with the bath, the chain remains in a Luttinger liquid phase with a reduced but finite spin stiffness, while above a critical coupling the system is in a dissipative phase characterized by a vanishing spin stiffness. We argue that the transport properties are also inhibited: the Luttinger liquid is a perfect conductor while the dissipative phase displays finite resistivity. Our results show that the effect of the bath can be interpreted as annealed disorder inducing signatures of localization.
11 pages, 4 figures
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Cited by in corpus (7)
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- Antiferromagnetic order enhanced by local dissipation
- Bosonized one-dimensional quantum systems through enhanced event-chain Monte Carlo
- One dimensional Bose-Hubbard model with long range hopping