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Zero-temperature criticality in the two-dimensional gauge glass model

Lei-Han Tang·Peiqing Tong
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Abstract

The zero-temperature critical state of the two-dimensional gauge glass model is investigated. It is found that low-energy vortex configurations afford a simple description in terms of gapless, weakly interacting vortex-antivortex pair excitations. A linear dielectric screening calculation is presented in a renormalization group setting that yields a power-law decay of spin-wave stiffness with distance. These properties are in agreement with low-temperature specific heat and spin-glass susceptibility data obtained in large-scale multi-canonical Monte Carlo simulations.

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Lei-Han Tang, Peiqing Tong. 2004-12-15. Zero-temperature criticality in the two-dimensional gauge glass model. https://doi.org/10.1103/physrevlett.94.207204

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