Phase transitions for a collective coordinate coupled to luttinger liquids

Baruch Horovitz, Thierry Giamarchi, Pierre Le Doussal

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We study various realizations of collective coordinates, e.g., the position of a particle, the charge of a Coulomb box, or the phase of a Bose or a superconducting condensate, coupled to Luttinger liquids with N flavors. We find that for a Luttinger parameter (1/2)<K<1 there is a phase transition from a delocalized phase into a phase with a periodic potential at strong coupling. In the delocalized phase the dynamics is dominated by an effective mass, i.e., diffusive in imaginary time, while on the transition line it becomes dissipative. At K=(1/2) there is an additional transition into a localized phase with no diffusion at zero temperature.

Original languageEnglish
Article number115302
JournalPhysical Review Letters
Issue number11
StatePublished - 9 Sep 2013

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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