Quantum criticality in disordered bosonic optical lattices

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.043613· OSTI ID:21544674

Xiaoming, Cai; Shu, Chen; Yupeng, Wang ^[1]

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1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)

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.

• OSTI ID: 21544674
• Journal Information: Physical Review. A, Vol. 83, Issue 4; Other Information: DOI: 10.1103/PhysRevA.83.043613; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSE-EINSTEIN GAS
BOSONS
CRITICALITY
ENERGY-LEVEL TRANSITIONS
FERMI GAS
LATTICE PARAMETERS
MAPPING
ONE-DIMENSIONAL CALCULATIONS
PHASE DIAGRAMS
QUANTUM STATES
SCALING
SUPERFLUIDITY
DIAGRAMS
INFORMATION