Quantum Quenches from the Critical Point: Theory and Experimental Validation in a Trapped-Ion Quantum Simulator
Quantum Physics
2025-07-03 v1
Abstract
We investigate quantum quenches starting from a critical point and experimentally probe the associated defect statistics using a trapped-ion quantum simulator of the transverse-field Ising model. The cumulants of the defect number distribution exhibit universal scaling with quench depth, featuring Gaussian behavior at leading order and systematic subleading corrections. Our results are in excellent agreement with both exact and approximate theoretical predictions, establishing quench-depth scaling as a powerful and precise experimental benchmark for nonequilibrium quantum critical dynamics.
Cite
@article{arxiv.2507.01087,
title = {Quantum Quenches from the Critical Point: Theory and Experimental Validation in a Trapped-Ion Quantum Simulator},
author = {Chen-Xu Wang and András Grabarits and Jin-Ming Cui and Hua-Bi Zeng and Yun-Feng Huang and Chuan-Feng Li and Adolfo del Campo},
journal= {arXiv preprint arXiv:2507.01087},
year = {2025}
}