Local Stress and Superfluid Properties of Solid 4He

Authors

L Pollet
M Boninsegni
A Kuklov
Nikolai Prokof'ev, University of Massachusetts - AmherstFollow
Boris Svistunov, University of Massachusetts - AmherstFollow
M Troyer

Publication Date

2008

Journal or Book Title

Physics Review Letters

Abstract

We provide a semiquantitative tool, derived from first-principles simulations, for answering the question of whether certain types of defects in solid 4He support mass superflow. Although ideal crystals of 4He are not supersolid, the gap for vacancy creation closes when applying a moderate stress. While a homogeneous system becomes unstable at this point, the stressed core of crystalline defects (dislocations and grain boundaries) can turn superfluid.

Comments

This is the pre-published version harvested from ArXiv. The published version is located at http://prl.aps.org/abstract/PRL/v101/i9/e097202

Volume

101

Issue

9

Recommended Citation

Pollet, L; Boninsegni, M; Kuklov, A; Prokof'ev, Nikolai; Svistunov, Boris; and Troyer, M, "Local Stress and Superfluid Properties of Solid 4He" (2008). Physics Review Letters. 1178.
Retrieved from https://scholarworks.umass.edu/physics_faculty_pubs/1178