A Gross-Pitaevskii Treatment for Supersolid He

Abstract

The observations of non-linear rotational susceptibility (NCRI) in samples of solid He below 1-200 mK temperatures are conjectured to be describable in terms of a rarified Gross-Pitaevskii superfluid of vacancies (or, more generally, incommensuracies) with a transition temperature of about 50 mK, whose density is locally enhanced by crystal imperfections. We argue that the observations can be much affected by this density enhancement. We argue also that it is likely that the ground state of every pure Bose solid is supersolid.

References in corpus (9)

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• Supersolid Helium at High Pressure
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• Supersolid phase and magnetization plateaus observed in anisotropic spin-3/2 Heisenberg model on bipartite lattices
• Onset temperature of Bose-Einstein condensation in incommensurate solid 4He
• Quantum dislocations: the fate of multiple vacancies in two dimensional solid 4He
• Optical lattices as a tool to study defect-induced superfluidity
• Static impurities in a supersolid of interacting hard-core bosons on a triangular lattice
• Tuneable defect interactions and supersolidity in dipolar quantum gases on a lattice potential
• Multiple Mode Torsional Oscillator Studies and Evidence for Supersolidity in Bulk 4He
• Zero-point Divacancy Concentration in the Shadow Wave-Function Model for Solid 4He
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• NMR Investigation of the Low Temperature Dynamics of solid 4He doped with 3He impurities
• Supersolid phase of Three-dimensional spin and hardcore-boson models
• Interplay of non-linear elasticity and dislocation-induced superfluidity in solid Helium-4
• BCC vs. HCP - The Effect of Crystal Symmetry on the High Temperature Mobility of Solid ${}^4$He
• Competing phases and intertwined orders in coupled wires near the self-dual point
• Supersolid in Bose-Bose-Fermi Mixtures subjected to a Square Lattice
• Elastic Coulomb-levitation: why is ice so slippery?
• Off-diagonal Long-Range Order and Supersolidity in a Quantum Solid with Vacancies