Computing Masses and Surface Tension from Effective Transfer Matrices
M. Hasenbusch, K. Rummukainen, K. Pinn
Abstract
We propose an effective transfer-matrix method that allows a measurement of tunnelling correlation lengths that are orders of magnitude larger than the lattice extension. Combining this method with a particularly efficient implementation of the multimagnetical algorithm we were able to determine the interface tension of the 3D Ising model close to criticality with a relative error of less than 1 per cent.
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