# Unconventional critical exponents at dynamical quantum phase transitions in a random Ising chain

@article{Trapin2021UnconventionalCE,
title={Unconventional critical exponents at dynamical quantum phase transitions in a random Ising chain},
author={Daniele Trapin and Jad C. Halimeh and Markus Heyl},
journal={Physical Review B},
year={2021}
}
• Published 13 May 2020
• Physics
• Physical Review B
Dynamical quantum phase transitions (DQPTs) feature singular temporal behavior in transient quantum states during nonequilibrium real-time evolution. In this work we show that DQPTs in random Ising chains exhibit critical behavior with nontrivial exponents that are not integer valued and not of mean-field type. By means of an exact renormalization group transformation we estimate the exponents with high accuracy eliminating largely any finite-size effects. We further discuss how the considered…
3 Citations

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