Emergence of $X$ states in a quantum impurity model

• URL: http://arxiv.org/abs/2501.13914v3
• Date: Sat, 03 May 2025 19:14:03 GMT
• Title: Emergence of $X$ states in a quantum impurity model
• Authors: Moallison F. Cavalcante, Marcus V. S. Bonança, Eduardo Miranda, Sebastian Deffner,
• Abstract summary: We demonstrate the emergence of $X$ states in the long-time response of a locally perturbed many-body quantum impurity model.<n>Surprisingly, after carrying out a quantum information theory characterization, we show that such states exhibit genuine quantum correlations.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In the present work, we demonstrate the emergence of $X$ 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.

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