Ginsburg-Landau theory of supersolid

Abstract

We develop a simple Ginsburg-Landau theory to study all the possible phases and phase transitions in ${}^{4}He$, analyze the condition for the existence of the supersolid (SS) and map out its global phase diagram from a unified framework. If the condition favors the existence of the SS, we use the GL theory to address several experimental facts and also make some predictions that are amenable to experimental tests. A key prediction is that the X-ray scattering intensity from the SS ought to have an additional modulation over that of the NS. The modulation amplitude is proportional to the Non-Classical Rotational-Inertial (NCRI) observed in the torsional oscillator experiments.

4+ pages, 1 Fig. Final version to appear in Phys. Rev. Lett

References in corpus (1)

• Ring exchanges and the supersolid phase of 4He

Cited by in corpus (4)

• What makes a crystal supersolid ?
• Solid 4He and the Supersolid Phase: from Theoretical Speculation to the Discovery of a New State of Matter? A Review of the Past and Present Status of Research
• Duality, Magnetic space group and their applications to quantum phases and phase transitions on bipartite lattices in several experimental systems
• Supersolid phases of dipolar fermions in a two-dimensional-lattice bilayer array