Superfluid{endash}Bose-glass transition in weakly disordered commensurate one-dimensional system

Journal Article · Sun Dec 01 04:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.54.16131· OSTI ID:399945

Svistunov, B V ^[1]

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1. Russian Research Center ``Kurchatov Institute,`` 123182 Moscow (Russia)

We study the effect of commensurability (integer filling factor) on the superfluid (SF)-Bose-glass (BG) transition in a one-dimensional disordered system in the limit of weak disorder, when the effect is most pronounced and, on the other hand, may be traced via the renormalization-group analysis. The equation for the SF-BG phase boundary demonstrating the effect of disorder-stimulated superfluidity implies that the strength of disorder sufficient to restore superfluidity from Mott insulator (MI) is much larger than that enough to turn MI into BG. Thus we provide an explicit proof of the fact that at arbitrarily small disorder the SF and MI phases are always separated by BG. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 399945
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 22 Vol. 54; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BOSE-EINSTEIN CONDENSATION
BOSE-EINSTEIN GAS
COMMENSURATE PHASES
DISORDERED SYSTEMS
ELECTRICAL PROPERTIES
ONE-DIMENSIONAL CALCULATIONS
ORDER-DISORDER TRANSFORMATIONS
RENORMALIZATION
SUPERFLUIDITY