Quantum Hall Phases and Plasma Analogy in Rotating Trapped Bose Gases

N. Rougerie, S. Serfaty, J. Yngvason

Research output: Contribution to journalArticle

Abstract

A bosonic analogue of the fractional quantum Hall effect occurs in rapidly rotating trapped Bose gases: There is a transition from uncorrelated Hartree states to strongly correlated states such as the Laughlin wave function. This physics may be described by effective Hamiltonians with delta interactions acting on a bosonic N-body Bargmann space of analytic functions. In a previous paper (Rougerie et al. in Phys. Rev. A 87:023618, 2013) we studied the case of a quadratic plus quartic trapping potential and derived conditions on the parameters of the model for its ground state to be asymptotically strongly correlated. This relied essentially on energy upper bounds using quantum Hall trial states, incorporating the correlations of the Bose-Laughlin state in addition to a multiply quantized vortex pinned at the origin. In this paper we investigate in more details the density of these trial states, thereby substantiating further the physical picture described in (Rougerie et al. in Phys. Rev. A 87:023618, 2013), improving our energy estimates and allowing to consider more general trapping potentials. Our analysis is based on the interpretation of the densities of quantum Hall trial states as Gibbs measures of classical 2D Coulomb gases (plasma analogy). New estimates on the mean-field limit of such systems are presented.

Original languageEnglish (US)
Pages (from-to)2-50
Number of pages49
JournalJournal of Statistical Physics
Volume154
Issue number1-2
DOIs
StatePublished - 2014

Keywords

  • 2D Coulomb gases
  • Bosonic Quantum Hall Effect
  • Rotating Bose gases

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics

Fingerprint Dive into the research topics of 'Quantum Hall Phases and Plasma Analogy in Rotating Trapped Bose Gases'. Together they form a unique fingerprint.

  • Cite this