Superfluid to normal phase transition in strongly correlated bosons in two and three dimensions

Juan Carrasquilla, Marcos Rigol

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Using quantum Monte Carlo simulations, we investigate the finite-temperature phase diagram of hard-core bosons (XY model) in two- and three-dimensional lattices. To determine the phase boundaries, we perform a finite-size-scaling analysis of the condensate fraction and/or the superfluid stiffness. We then discuss how these phase diagrams can be measured in experiments with trapped ultracold gases, where the systems are inhomogeneous. For that, we introduce a method based on the measurement of the zero-momentum occupation, which is adequate for experiments dealing with both homogeneous and trapped systems, and compare it with previously proposed approaches.

Original languageEnglish (US)
Article number043629
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume86
Issue number4
DOIs
StatePublished - Oct 26 2012

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Fingerprint

Dive into the research topics of 'Superfluid to normal phase transition in strongly correlated bosons in two and three dimensions'. Together they form a unique fingerprint.

Cite this