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Universal low-temperature properties of quantum and classical ferromagnetic chains

Minoru Takahashi·Hiroaki Nakamura·Subir Sachdev
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Abstract

We identify the critical theory controlling the universal, low temperature, macroscopic properties of both quantum and classical ferromagnetic chains. The theory is the quantum mechanics of a single rotor. The mapping leads to an efficient method for computing scaling functions to high accuracy.

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Minoru Takahashi, Hiroaki Nakamura, Subir Sachdev. 1996-03-28. Universal low-temperature properties of quantum and classical ferromagnetic chains. https://doi.org/10.1103/physrevb.54.r744

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