Quantum Plasticity and Supersolid Response in Helium-4

Abstract

We argue that the three key phenomena recently observed in solid ${}^4$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 ${}^3$He impurities, the syringe effect and giant plasticity persist down to $T=0$; 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, ${}^3$He impurities should suppress the syringe effect partially or completely at appropriately low temperatures.

References in corpus (6)

• Luttinger Liquid in the Core of Screw Dislocation in Helium-4
• Observation of Unusual Mass Transport in Solid hcp 4He
• Ring exchanges and the supersolid phase of 4He
• The fate of vacancy-induced supersolidity in 4He
• Upper limit of supersoldity in solid helium
• Binding of a 3He impurity to a screw dislocation in solid 4He

Cited by in corpus (4)

• Observation of the supersolid stripe phase in spin-orbit coupled Bose-Einstein condensates
• Plasticity induced superclimb in solid Helium-4: Direct and inverse effects
• Transition to a supersolid phase in a two-dimensional dilute gas of electron-hole pairs
• Dislocation Mobility and Anomalous Shear Modulus Effect in ${}^4$He Crystals