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The Droplet-scaling Versus Replica Symmetry Breaking Debate in Spin Glasses Revisited by Moore, M. A. is a scholarly article available to read on EtoBox.

What is The Droplet-scaling Versus Replica Symmetry Breaking Debate in Spin Glasses Revisited about?

Simulational studies of spin glasses in the last decade have focussed on the so-called replicon exponent $\alpha$ as a means of determining whether the low-temperature phase of spin glasses is described by the replica symmetry breaking picture of Parisi or by the droplet-scaling picture. On the latter picture, it should be zero, but we shall argue that it will only be zero for systems of linear dimension $L > L^*$. The crossover length $L^*$ may be of the order of hundreds of lattice spacings in three dimensions and approach infinity in 6 dimensions. We use the droplet-scaling picture to show that the apparent non-zero value of $\alpha$ when $L < L^*$ should be $2 \theta$, where $\theta$ is the domain wall energy scaling exponent, This formula is in reasonable agreement with the reported values of $\alpha$.

Author

Moore, M. A.

Published

2021

Language

EN