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Finite size and temperature effects in the $J_1-J_2$ model on a strip

E. S. Pisanova·N. B. Ivanov·N. S. Tonchev
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Abstract

Within Takahashi's spin-wave theory we study finite size and temperature effects near the quantum critical point in the $J_{1}-J_{2}$ Heisenberg antiferromagnet defined on a strip ($L\times\infty$). In the continuum limit, the theory predicts universal finite size and temperature corrections and describes the dimensional crossover in magnetic properties from 2+1 to 1+1 space-time dimensions.

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E. S. Pisanova, N. B. Ivanov, N. S. Tonchev. 2002-05-22. Finite size and temperature effects in the $J_1-J_2$ model on a strip. https://doi.org/10.1103/physrevb.65.212404

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