Emergence of $X$ states in a quantum impurity model
Strongly Correlated Electrons
2025-05-06 v3 Quantum Physics
Abstract
In the present work, we demonstrate the emergence of states in the long-time response of a locally perturbed many-body quantum impurity model. The emergence of the double-qubit state is heralded by the lack of decay of the response function as well as the out-of-time order correlator, signifying the trapping of excitations and hence information in edge modes. Surprisingly, after carrying out a quantum information theory characterization, we show that such states exhibit genuine quantum correlations.
Keywords
Cite
@article{arxiv.2501.13914,
title = {Emergence of $X$ states in a quantum impurity model},
author = {Moallison F. Cavalcante and Marcus V. S. Bonança and Eduardo Miranda and Sebastian Deffner},
journal= {arXiv preprint arXiv:2501.13914},
year = {2025}
}