Quantum criticality in disordered bosonic optical lattices

Details Quantum criticality in disordered bosonic optical lattices Quantum criticality in disordered bosonic optical lattices

2010-11-24

arxiv.org/abs/1011.5387v1

Phys. Rev. A 83, 043613 (2011)

Physics

Condensed Matter

Quantum Gases

4 pages, 5 figures

Scientific paper

10.1103/PhysRevA.83.043613

Using the exact Bose-Fermi mapping, we study universal properties of ground-state density distributions and finite-temperature quantum critical behavior of one-dimensional hard-core bosons in trapped incommensurate optical lattices. Through the analysis of universal scaling relations in the quantum critical regime, we demonstrate that the superfluid to Bose glass transition and the general phase diagram of disordered hard-core bosons can be uniquely determined from finite-temperature density distributions of the trapped disordered system.

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