%0 Journal Article
%T Mean-Field Theory of a Quantum Heisenberg Spin Glass
%A Antoine Georges
%A Olivier Parcollet
%A Subir Sachdev
%J Physics
%D 1999
%I arXiv
%R 10.1103/PhysRevLett.85.840
%X A full mean field solution of a quantum Heisenberg spin glass model is presented in a large-N limit. A spin glass transition is found for all values of the spin S. The quantum critical regime associated with the quantum transition at S=0, and the various regimes in the spin glass phase at high spin are analyzed. The specific heat is shown to vanish linearly with temperature. In the spin-glass phase, intriguing connections between the equilibrium properties of the quantum problem and the out-of-equilibrium dynamics of classical models are pointed out.
%U http://arxiv.org/abs/cond-mat/9909239v1