Dynamical Phase Diagram of a Quantum Ising Chain with Long Range Interactions
Statistical Mechanics
2019-11-13 v1 Quantum Physics
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.
Keywords
Cite
@article{arxiv.1906.00691,
title = {Dynamical Phase Diagram of a Quantum Ising Chain with Long Range Interactions},
author = {Giulia Piccitto and Bojan Žunkovič and Alessandro Silva},
journal= {arXiv preprint arXiv:1906.00691},
year = {2019}
}
Comments
4 pages, 4 figures + Supplementary material 2 pages, 4 figures