RT Journal Article
T1 Effect of disorder on the critical temperature of a dilute hard-sphere gas
A1 Gordillo, M.C.
A1 Ceperley, D. M.
K1 Critical temperature
K1 Hard-sphere gas
AB We have performed path integral Monte Carlo calculations to determine the effect of quenched disorder on the superfluid density of a dilute 3D hard-sphere gas. The disorder was introduced by locating hard cylinders randomly inside the simulation cell. Our results indicate that the disorder does not strongly affect the superfluid critical temperature. There is a reduction of ¿s/¿ with increasing disorder and with excluded volume for similar disorders and a possible change of universality class (as evidenced by the correlation length exponent) at high disorder. Comparison to experiments of helium in Vycor is made.
PB American Physical Society
SN 0031-9007
YR 2000
FD 2000-11
LK http://hdl.handle.net/10433/977
UL http://hdl.handle.net/10433/977
LA en
NO Physical Review Letters, 2000;85(22):4735-4738
NO Universidad Pablo de Olavide. Departamento de Sistemas Físicos, Químicos y Naturales
DS RIO
RD Apr 24, 2026