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arXiv · 1906.00691

Dynamical Phase Diagram of a Quantum Ising Chain with Long Range Interactions

Giulia Piccitto·Bojan Žunkovič·Alessandro Silva
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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.

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Giulia Piccitto, Bojan Žunkovič, Alessandro Silva. 2019-06-03. Dynamical Phase Diagram of a Quantum Ising Chain with Long Range Interactions. https://doi.org/10.1103/physrevb.100.180402

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