Stretched exponentials in the dynamics and at the ground state of the plaquette Ising model
Year: 2012
Type: preprint
Abstract: Simulations show that the autocorrelation function C(t) in the d=3 Ising model with a plaquette interaction has a stretched-exponential decay in a supercooled liquid phase. Such a decay characterizes also some ground-state probability distributions obtained from the numerically exact counting of up to 10^450 configurations. A related model with a strongly degenerate ground state but lacking glassy features does not exhibit such a decay. Tensionless modification of the droplet model might explain stretched-exponential decay of C(t) even in three-dimensional systems.
Source: arXiv (Cornell University)
Author: Adam Lipowski
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2802579014