On the Coexistence of Diagonal and off-Diagonal Long-Range Order, a Monte Carlo Study

Preprint

8 December 1993

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9312034

Abstract

The zero temperature properties of interacting 2 dimensional lattice bosons are investigated. We present Monte Carlo data for soft-core bosons that demonstrate the existence of a phase in which crystalline long-range order and off-diagonal long-range order (superfluidity) coexist. We comment on the difference between hard and soft-core bosons and compare our data to mean-field results that predict a larger coexistence region. Furthermore, we determine the critical exponents for the various phase transitions.

Keywords

DIAGONAL LONG RANGE
PHASE TRANSITIONS
LONG RANGE ORDER
MONTE CARLO
RANGE ORDER
COEXIST
BOSONS

All Related Versions

Version 1, 1993-12-08, ArXiv
Published version: Physical Review Letters, 72 (22), 3598.

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