Three-dimensional random XY model: Application to the superfluid transition of sup 4 He in porous media

Journal Article · Fri Jun 01 04:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.41.11388· OSTI ID:6807073

Li, Y; Teitel, S ^[1]

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1. Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627 (US)

We study a three-dimensional classical {ital XY} model with strongly fluctuating, spatially uncorrelated, bond disorder. Finite-size scaling analysis of Monte Carlo simulation data has been used to determine critical exponents. Evidence for a possible shift in exponents from the pure {ital XY} case is found. Connection to recent experiments on the superfluid phase transition of {sup 4}He in porous media is discussed.

• DOE Contract Number: FG02-89ER14017
• OSTI ID: 6807073
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 41:16; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
EVEN-EVEN NUCLEI
FLUCTUATIONS
HELIUM 4
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MATERIALS
MATHEMATICAL MODELS
MONTE CARLO METHOD
NUCLEI
POROUS MATERIALS
RANDOMNESS
SCALING LAWS
SIMULATION
STABLE ISOTOPES
SUPERFLUIDITY
THREE-DIMENSIONAL CALCULATIONS
VARIATIONS