Theory of Supersolidity

Abstract

After reviewing some experimental facts, and early theories, I sketch the Hartree-Fock description of Boson solids, emphasizing the contrast with the Fermion case in that the natural solution is a product of local wave-functions. I then investigate the Boson Hubbard model to demonstrate that the local functions are not orthogonal and exemplify a novel state of matter which has superflow but not ODLRO, below a cooperative thermal transition. I then discuss whether or not these ideas actually apply to solid He.

References in corpus (5)

• Low Temperature Shear Modulus Changes in Solid 4-He and Connection to Supersolidity
• Evidence for a Superglass State in Solid 4He
• Two New Vortex Liquids
• Interplay of Rotational, Relaxational, and Shear Dynamics in Solid 4He
• New Dissipation Relaxation Phenomenon in Oscillating Solid He-4

Cited by in corpus (5)

• On Holographic Insulators and Supersolids
• Quantum Monte Carlo study of a vortex in superfluid ${}^4$He and search for a vortex state in the solid
• Multiple Mode Torsional Oscillator Studies and Evidence for Supersolidity in Bulk 4He
• Drude weight, Meissner weight, rotational inertia of bosonic superfluids: how are they distinguished?
• Superfluid weight and polarization amplitude in the one-dimensional bosonic Hubbard model