Dynamical Phase Diagram of a Quantum Ising Chain with Long Range Interactions
arXiv:1906.00691 · doi:10.1103/PhysRevB.100.180402
Abstract
We investigate the effect of short-range correlations on the dynamical phase diagram of quantum many-body systems with long-range interactions. Focusing on Ising spin chains with power-law decaying interactions and accounting for short-range correlations by a cluster mean field theory we show that short-range correlations are responsible for the emergence of a chaotic dynamical region. Analyzing the fine details of the phase diagram, we show that the resulting chaotic dynamics bears close analogies with that of a tossed coin.
arXiv comment4 pages, 4 figures + Supplementary material 2 pages, 4 figures
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