Zero and low temperature behavior of the two-dimensional $\pm J$ Ising spin glass

Details Zero and low temperature behavior of the two-dimensional $\pm J$ Ising spin glass Zero and low temperature behavior of the two-dimensional $\pm J$ Ising spin glass

2011-03-10

arxiv.org/abs/1103.1946v2

Physical Review Letters, Vol. 107, article 047203 (2011)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 3 figures; v2 for clarifications in presentation (same results)

Scientific paper

10.1103/PhysRevLett.107.047203

Scaling arguments and precise simulations are used to study the square lattice $\pm J$ Ising spin glass, a prototypical model for glassy systems. Droplet theory predicts, and our numerical results show, entropically-stabilized long range spin glass order at zero temperature. The low temperature scaling behavior has an important new crossover length scale that produces a power-law dependence of the heat capacity on temperature.

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