Bose-Einstein condensation in quantum glasses

TL;DR

This paper investigates a new quantum phase in frustrated bosonic systems that exhibits both Bose-Einstein condensation and spin-glass behavior, contrasting it with traditional Bose glasses.

Contribution

It introduces and characterizes a novel quantum phase combining condensation and glassy properties, advancing understanding of geometrically frustrated bosonic systems.

Findings

Existence of a phase with both Bose-Einstein condensation and spin-glass behavior

Differences between this phase and traditional Bose glasses clarified

Numerical and analytical methods used to study the phase

Abstract

The role of geometrical frustration in strongly interacting bosonic systems is studied with a combined numerical and analytical approach. We demonstrate the existence of a novel quantum phase featuring both Bose-Einstein condensation and spin-glass behaviour. The differences between such a phase and the otherwise insulating "Bose glasses" are elucidated.