Quantum kinetic Ising models
arXiv:0911.0624 · doi:10.1088/1367-2630/12/2/025021
Abstract
We introduce a quantum generalization of classical kinetic Ising models, described by a certain class of quantum many body master equations. Similarly to kinetic Ising models with detailed balance that are equivalent to certain Hamiltonian systems, our models reduce to a set of Hamiltonian systems determining the dynamics of the elements of the many body density matrix. The ground states of these Hamiltonians are well described by matrix product, or pair entangled projected states. We discuss critical properties of such Hamiltonians, as well as entanglement properties of their low energy states.
arXiv comment20 pages, 4 figures, minor improvements, accepted in New Journal of Physics
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