26 citations · 75 across the 11 of their papers we have counts for
3 papers · 1 filter
Effects of anisotropy on a quantum Heisenberg spin glass in a three-dimensional hierarchical lattice
J. Ricardo de Sousa, Beatriz Boechat, Claudette Cordeiro +1
We study the anisotropic Heisenberg spin-glass model in a three-dimensional hierarchical lattice (designed to approximate the cubic lattice), within a real-space renormalization-gr…
Reconstruction of the Free Energy in the Metastable Region using the Path Ensemble
Armando Ticona Bustillos, Dieter W. Heermann, Claudette E. Cordeiro
By quenching into the metastable region of the three-dimensional Ising model, we investigate the paths that the magnetization (energy) takes as a function of time. We accumulate th…
Evidence for sharper than expected transition between metastable and unstable states
Dieter W. Heermann, Claudette E. Cordeiro
In mean-field theory, i.e. infinite-range interactions, the transition between metastable and unstable states of a thermodynamic system is sharp. The metastable and the unstable st…