Off-Diagonal Long-Range Order in Solid 4He

Preprint

21 December 2005

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0512547

Abstract

Measurements of the moment of inertia by Kim and Chan have found that solid 4He acts like a supersolid at low temperatures. To understand the order in solid 4He, we have used Path Integral Monte Carlo to calculate the off-diagonal long range order (ODLRO) (equivalent to Bose-Einstein condensation, BEC). We do not find ODLRO in a perfect hcp crystal at the melting density. We discuss these results in relation to proposed quantum solid trial functions. We conclude that the solid 4He wave function has correlations which suppress both vacancies and BEC.

Keywords

DIAGONAL LONG RANGE
LONG RANGE ORDER
4HE MEASUREMENTS
ORDER IN SOLID
RANGE ORDER
SOLID 4HE

All Related Versions

Version 1, 2005-12-21, ArXiv
Published version: Physical Review Letters, 96 (10), 105302.

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