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Exact Ampitude Ratio and Finite-Size Corrections for the M x N Square Lattice Ising Model The :

N. Sh. Izmailian·Chin-Kun Hu
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Abstract

Let f, U and C represent, respectively, the free energy, the internal energy and the specific heat of the critical Ising model on the square M x N lattice with periodic boundary conditions. We find that N f and U are well-defined odd function of 1/N. We also find that ratios of subdominant (N^(-2 i - 1)) finite-size corrections amplitudes for the internal energy and the specific heat are constant. The free energy and the internal energy at the critical point are calculated asymtotically up to N^(-5) order, and the specific heat up to N^(-3) order.

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N. Sh. Izmailian, Chin-Kun Hu. 2001-12-05. Exact Ampitude Ratio and Finite-Size Corrections for the M x N Square Lattice Ising Model The :. https://doi.org/10.1103/physreve.65.036103

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