Quantum Plasticity and Supersolid Response in Helium-4
Abstract
We argue that the three key phenomena recently observed in solid He---mass supertransport, anomalous isochoric compressibility (syringe effect), and giant plasticity---are closely linked to each other through the physics of an interconnected network of tilted quantum-rough dislocations. As immediate implications of this connection several predictions follow: In the absence of He impurities, the syringe effect and giant plasticity persist down to ; the dynamical low-frequency syringe and giant-plasticity responses are dispersionless; and similarly to giant plasticity but without direct relationship to the supertransport along the dislocation cores, He impurities should suppress the syringe effect partially or completely at appropriately low temperatures.
Keywords
Cite
@article{arxiv.1409.3750,
title = {Quantum Plasticity and Supersolid Response in Helium-4},
author = {Anatoly Kuklov and Lode Pollet and Nikolay Prokof'ev and Boris Svistunov},
journal= {arXiv preprint arXiv:1409.3750},
year = {2014}
}