Title

Superfluid Density and Compressibility at the Superfluid-Mott Glass Transition

Abstract

Systems of disordered interacting bosons with particle-hole symmetry can undergo a quantum phase transition between the superfluid phase and the Mott glass phase which is a gapless incompressible insulator. We employ large-scale Monte Carlo simulations of a two-dimensional site-diluted quantum rotor model to investigate the properties of the superfluid density and the compressibility at this transition. We find that both quantities feature power-law critical behavior with exponents governed by generalized Josephson relations.

Department(s)

Physics

Sponsor(s)

National Science Foundation (U.S.)

Comments

This work was supported in part by the NSF under Grant Nos. DMR-1506152 and PHY-1125915.

International Standard Serial Number (ISSN)

1951-6355; 1951-6401

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2019 Springer Verlag, All rights reserved.

Publication Date

01 Mar 2019

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