Emergence of X states in a quantum impurity model
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 t...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-05-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.L022027 |
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| _version_ | 1849325130174431232 |
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| author | Moallison F. Cavalcante Marcus V. S. Bonança Eduardo Miranda Sebastian Deffner |
| author_facet | Moallison F. Cavalcante Marcus V. S. Bonança Eduardo Miranda Sebastian Deffner |
| author_sort | Moallison F. Cavalcante |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-8a583e87e4ae4deab115629917bf305c |
| institution | Kabale University |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-8a583e87e4ae4deab115629917bf305c2025-08-20T03:48:30ZengAmerican Physical SocietyPhysical Review Research2643-15642025-05-0172L02202710.1103/PhysRevResearch.7.L022027Emergence of X states in a quantum impurity modelMoallison F. CavalcanteMarcus V. S. BonançaEduardo MirandaSebastian DeffnerIn 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.http://doi.org/10.1103/PhysRevResearch.7.L022027 |
| spellingShingle | Moallison F. Cavalcante Marcus V. S. Bonança Eduardo Miranda Sebastian Deffner Emergence of X states in a quantum impurity model Physical Review Research |
| title | Emergence of X states in a quantum impurity model |
| title_full | Emergence of X states in a quantum impurity model |
| title_fullStr | Emergence of X states in a quantum impurity model |
| title_full_unstemmed | Emergence of X states in a quantum impurity model |
| title_short | Emergence of X states in a quantum impurity model |
| title_sort | emergence of x states in a quantum impurity model |
| url | http://doi.org/10.1103/PhysRevResearch.7.L022027 |
| work_keys_str_mv | AT moallisonfcavalcante emergenceofxstatesinaquantumimpuritymodel AT marcusvsbonanca emergenceofxstatesinaquantumimpuritymodel AT eduardomiranda emergenceofxstatesinaquantumimpuritymodel AT sebastiandeffner emergenceofxstatesinaquantumimpuritymodel |