Dynamical phase diagram of a quantum Ising chain with long-range interactionsPiccitto, Giulia (Avtor) Žunkovič, Bojan (Avtor) Silva, Alessandro (Avtor) quantum mechanicsstatistical mechanicsWe 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.20192019-12-02 09:37:27Neznano113074UDK: 536.93ISSN pri članku: 2469-9950DOI: 10.1103/PhysRevB.100.180402COBISS_ID: 3389796OceCobissID: 2997348sl