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Title: Structure, Bose-Einstein condensation, and superfluidity of two-dimensional confined dipolar assemblies

Abstract

Low-temperature properties of harmonically confined two-dimensional assemblies of dipolar bosons are systematically investigated by Monte Carlo simulations. Calculations carried out for different numbers of particles and strengths of the confining potential yield evidence of a quantum phase transition from a superfluid to a crystal-like phase, consistently with what is observed in the homogeneous system. It is found that the crystal phase nucleates in the center of the trap, as the density increases. Bose-Einstein condensation vanishes at T=0 upon entering the crystalline phase, concurrently with the disappearance of the superfluid response.

Authors:
; ;  [1]
  1. Department of Physics, University of Alberta, Edmonton, Alberta (Canada)
Publication Date:
OSTI Identifier:
21596820
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 84; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevB.84.014534; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BOSE-EINSTEIN CONDENSATION; BOSONS; COMPUTERIZED SIMULATION; CRYSTALS; DENSITY; MONTE CARLO METHOD; PHASE TRANSFORMATIONS; SUPERFLUIDITY; TEMPERATURE ZERO K; TRAPS; TWO-DIMENSIONAL CALCULATIONS; CALCULATION METHODS; PHYSICAL PROPERTIES; SIMULATION

Citation Formats

Jain, Piyush, Cinti, Fabio, and Boninsegni, Massimo. Structure, Bose-Einstein condensation, and superfluidity of two-dimensional confined dipolar assemblies. United States: N. p., 2011. Web. doi:10.1103/PHYSREVB.84.014534.
Jain, Piyush, Cinti, Fabio, & Boninsegni, Massimo. Structure, Bose-Einstein condensation, and superfluidity of two-dimensional confined dipolar assemblies. United States. https://doi.org/10.1103/PHYSREVB.84.014534
Jain, Piyush, Cinti, Fabio, and Boninsegni, Massimo. 2011. "Structure, Bose-Einstein condensation, and superfluidity of two-dimensional confined dipolar assemblies". United States. https://doi.org/10.1103/PHYSREVB.84.014534.
@article{osti_21596820,
title = {Structure, Bose-Einstein condensation, and superfluidity of two-dimensional confined dipolar assemblies},
author = {Jain, Piyush and Cinti, Fabio and Boninsegni, Massimo},
abstractNote = {Low-temperature properties of harmonically confined two-dimensional assemblies of dipolar bosons are systematically investigated by Monte Carlo simulations. Calculations carried out for different numbers of particles and strengths of the confining potential yield evidence of a quantum phase transition from a superfluid to a crystal-like phase, consistently with what is observed in the homogeneous system. It is found that the crystal phase nucleates in the center of the trap, as the density increases. Bose-Einstein condensation vanishes at T=0 upon entering the crystalline phase, concurrently with the disappearance of the superfluid response.},
doi = {10.1103/PHYSREVB.84.014534},
url = {https://www.osti.gov/biblio/21596820}, journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 1,
volume = 84,
place = {United States},
year = {Fri Jul 01 00:00:00 EDT 2011},
month = {Fri Jul 01 00:00:00 EDT 2011}
}