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Rychtmyer-Meshkov instability and solid He melting driven by acoustic pulse
Nir Gov
Recent experiments have shown remarkable dynamics of solid He melting and growth, driven by the normal incidence of an acoustic pulse on the solid-liquid interface. The theory…
Dipolar corrections to the static magnetic susceptibility of condensed He
Nir Gov
We examine the consequences of a recent model describing correlated zero-point polarization of the electronic cloud in solid He. This polarization arises from the highly anisot…
Vortex-loops and solid nucleation in superfluid He and He
Nir Gov
We propose a new model for the nature of the nucleation of solid from the superfluid phases of He and He. Unique to the superfluid phases the solid nucleation involves an e…
Quantum nature of dislocations in pure bcc Helium
Nir Gov
Recent experiments show the thermal growth of dislocation lines in unlta-pure bcc He. The activation energy for the growth of the dislocation lines is found to agree with the…
Bcc ^4He as a Coherent Quantum Solid: "Super-Solid" ?
Nir Gov
In this work we investigate the quantum nature of bcc He. We show that it is a solid phase with an Off-Diagonal Long Range Order of coherently oscillating local electric dipo…
Coherent dipolar correlations in the ground-state of Kagome frustrated antiferromagnets
Nir Gov
We propose a new model for the nature of the low temperature phase of a geometrically frustrated antiferromgnet (AFM) with a Kagome lattice, SrCrGaO. We prop…