Off-diagonal long-range order in solid He4

Research output: Contribution to journalArticle

Abstract

Measurements of the moment of inertia by Kim and Chan have found that solid He4 acts like a supersolid at low temperatures. To understand the order in solid He4, we have used path integral Monte Carlo simulations to calculate the off-diagonal long-range order (ODLRO) [equivalent to Bose-Einstein condensation (BEC)]. We do not find ODLRO in a defect-free hcp crystal of He4 at the melting density. We discuss these results in relation to proposed quantum solid trial functions. We conclude that the solid He4 wave function has correlations which suppress both vacancies and BEC.

Original languageEnglish (US)
Article number105302
JournalPhysical review letters
Volume96
Issue number10
DOIs
StatePublished - Mar 24 2006

Fingerprint

condensation
moments of inertia
melting
wave functions
defects
crystals
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Off-diagonal long-range order in solid He4. / Clark, Bryan K; Ceperley, David M.

In: Physical review letters, Vol. 96, No. 10, 105302, 24.03.2006.

Research output: Contribution to journalArticle

@article{d1af407ad2be44c684349be1e92a6e3b,
title = "Off-diagonal long-range order in solid He4",
abstract = "Measurements of the moment of inertia by Kim and Chan have found that solid He4 acts like a supersolid at low temperatures. To understand the order in solid He4, we have used path integral Monte Carlo simulations to calculate the off-diagonal long-range order (ODLRO) [equivalent to Bose-Einstein condensation (BEC)]. We do not find ODLRO in a defect-free hcp crystal of He4 at the melting density. We discuss these results in relation to proposed quantum solid trial functions. We conclude that the solid He4 wave function has correlations which suppress both vacancies and BEC.",
author = "Clark, {Bryan K} and Ceperley, {David M}",
year = "2006",
month = "3",
day = "24",
doi = "10.1103/PhysRevLett.96.105302",
language = "English (US)",
volume = "96",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "10",

}

TY - JOUR

T1 - Off-diagonal long-range order in solid He4

AU - Clark, Bryan K

AU - Ceperley, David M

PY - 2006/3/24

Y1 - 2006/3/24

N2 - Measurements of the moment of inertia by Kim and Chan have found that solid He4 acts like a supersolid at low temperatures. To understand the order in solid He4, we have used path integral Monte Carlo simulations to calculate the off-diagonal long-range order (ODLRO) [equivalent to Bose-Einstein condensation (BEC)]. We do not find ODLRO in a defect-free hcp crystal of He4 at the melting density. We discuss these results in relation to proposed quantum solid trial functions. We conclude that the solid He4 wave function has correlations which suppress both vacancies and BEC.

AB - Measurements of the moment of inertia by Kim and Chan have found that solid He4 acts like a supersolid at low temperatures. To understand the order in solid He4, we have used path integral Monte Carlo simulations to calculate the off-diagonal long-range order (ODLRO) [equivalent to Bose-Einstein condensation (BEC)]. We do not find ODLRO in a defect-free hcp crystal of He4 at the melting density. We discuss these results in relation to proposed quantum solid trial functions. We conclude that the solid He4 wave function has correlations which suppress both vacancies and BEC.

UR - http://www.scopus.com/inward/record.url?scp=33645035896&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645035896&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.96.105302

DO - 10.1103/PhysRevLett.96.105302

M3 - Article

AN - SCOPUS:33645035896

VL - 96

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 10

M1 - 105302

ER -