Capillary Waves in Binder ’ s Approach to the Interface Tension

@inproceedings{Wiese2008CapillaryWI,
  title={Capillary Waves in Binder ’ s Approach to the Interface Tension},
  author={U.-J. Wiese and Schweizer Nationalfond},
  year={2008}
}
In Binder's approach the reduced interface tension σ of the Ising model in the broken phase is determined from the finite volume effects of the partition function Z(M) at fixed total magnetization M. For small |M| the partition function of a system of size L d with periodic boundary conditions is dominated by configurations with two interfaces, such that Z(M) ∝ exp(−2σL d−1). Capillary wave fluctuations of the interfaces correct this result to Z(M) ∝ L x exp(−2σL d−1) with x = −1. The knowledge… CONTINUE READING
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