Short-time Dynamic Behaviour of Critical XY Systems

Details Short-time Dynamic Behaviour of Critical XY Systems Short-time Dynamic Behaviour of Critical XY Systems

1998-12-08

arxiv.org/abs/cond-mat/9812124v1

Phys. Lett. A250 (1998) 383

Physics

Condensed Matter

Statistical Mechanics

to appear in Phys. Lett. A

Scientific paper

10.1016/S0375-9601(98)80003-0

Using Monte Carlo methods, the short-time dynamic scaling behaviour of two-dimensional critical XY systems is investigated. Our results for the XY model show that there exists universal scaling behaviour already in the short-time regime, but the values of the dynamic exponent $z$ differ for different initial conditions. For the fully frustrated XY model, power law scaling behaviour is also observed in the short-time regime. However, a violation of the standard scaling relation between the exponents is detected.

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