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arXiv · 1903.07721

Do tensor renormalization group methods work for frustrated spin systems?

Zheng Zhu·Helmut G. Katzgraber
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Abstract

No. To illustrate that tensor renormalization group methods are poorly suited for frustrated magnetic systems, we study the thermodynamic properties of the two-dimensional Edwards-Anderson Ising spin-glass model on a square lattice. We show that the limited precision of standard 64-bit data types and not a small cut-off parameter is the main reason for unphysical negative partition function values in spin glasses.

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Zheng Zhu, Helmut G. Katzgraber. 2019-03-18. Do tensor renormalization group methods work for frustrated spin systems?. https://arxiv.org/abs/1903.07721

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