Ground-state properties of a one-dimensional system of hard rods

A quantum Monte Carlo simulation of a system of bosonic hard rods in one dimension is presented and discussed. The calculation is exact since the analytical form of the wave function is known and is in excellent agreement with predictions obtained from asymptotic expansions valid at large distances....

Full description

Saved in:
Bibliographic Details
Published in:Physical review letters 2008-01, Vol.100 (2), p.020401-020401, Article 020401
Main Authors: Mazzanti, F, Astrakharchik, G E, Boronat, J, Casulleras, J
Format: Article
Language:English
Subjects:
ASYMPTOTIC SOLUTIONS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COMPUTERIZED SIMULATION
DENSITY MATRIX
DISTRIBUTION
DISTRIBUTION FUNCTIONS
GROUND STATES
MONTE CARLO METHOD
ONE-DIMENSIONAL CALCULATIONS
STRUCTURE FACTORS
WAVE FUNCTIONS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A quantum Monte Carlo simulation of a system of bosonic hard rods in one dimension is presented and discussed. The calculation is exact since the analytical form of the wave function is known and is in excellent agreement with predictions obtained from asymptotic expansions valid at large distances. The analysis of the static structure factor and the pair distribution function indicates that a solidlike and a gaslike phases exist at high and low densities, respectively. The one-body density matrix decays following a power law at large distances and produces a divergence in the low density momentum distribution at k=0 which can be identified as a quasicondensate.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.100.020401