Particle-hole symmetry and the Bose glass to superfluid transition

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.2977· OSTI ID:284510

Mukhopadhyay, R; Weichman, P B ^[1]

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1. Condensed Matter Physics 114-36, California Institute of Technology, Pasadena, California 91125 (United States)

The generic Hamiltonian describing the zero temperature transition between the insulating Bose glass phase and the superfluid phase lacks particle-hole symmetry, but a statistical version of this symmetry is believed to be restored at the critical point. We show that the renormalization group relevance of particle-hole asymmetry may be explored in a controlled fashion only for small time dimensions, {epsilon}{sub {tau}}{lt}1, where we find a stable particle-hole asymmetric and an unstable particle-hole symmetric fixed point, but we provide evidence that the two merge for some finite {epsilon}{sub {tau}}{approx_equal}2/3, which tends to confirm symmetry restoration at the physical {epsilon}{sub {tau}}=1. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 284510
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BOSONS
CRITICAL POINTS
CRITICAL TEMPERATURE
GLASS
INCOMMENSURATE PHASES
PHASE TRANSFORMATIONS
RENORMALIZATION
SUPERFLUIDITY
SYMMETRY
TEMPERATURE ZERO K