Irreversible processes without energy dissipation in an isolated Lipkin-Meshkov-Glick model
| dc.contributor.author | Puebla, Ricardo | |
| dc.contributor.author | Relaño Pérez, Armando | |
| dc.date.accessioned | 2023-06-18T06:46:28Z | |
| dc.date.available | 2023-06-18T06:46:28Z | |
| dc.date.issued | 2015-07-02 | |
| dc.description | © 2015 American Physical Society. We thank O. Marty for useful discussions. The work was supported by a grant by the Spanish Government for research Project No. FIS2012-35316, an Alexander von Humboldt Professorship, the EU Integrating Project SIQS, and the EU STREP project EQUAM. Part of the calculations of this work were performed in the high-capacity cluster for physics, funded in part by Universidad Complutense de Madrid and in part with Feder funding. This is a contribution to the Campus of International Excellence of Moncloa, CEI Moncloa. | |
| dc.description.abstract | For a certain class of isolated quantum systems, we report the existence of irreversible processes in which the energy is not dissipated. After a closed cycle in which the initial energy distribution is fully recovered, the expectation value of a symmetry-breaking observable changes from a value differing from zero in the initial state to zero in the final state. This entails the unavoidable loss of a certain amount of information and constitutes a source of irreversibility. We show that the von Neumann entropy of time-averaged equilibrium states increases in the same magnitude as a consequence of the process. We support this result by means of numerical calculations in an experimentally feasible system, the Lipkin-Meshkov-Glick model. | |
| dc.description.department | Depto. de Estructura de la Materia, Física Térmica y Electrónica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | Gobierno de España | |
| dc.description.sponsorship | Alexander von Humboldt Foundation Professorship (Alemania) | |
| dc.description.sponsorship | Integrating Project SIQS (UE) | |
| dc.description.sponsorship | STREP project EQUAM (UE) | |
| dc.description.sponsorship | Universidad Complutense de Madrid (UCM) | |
| dc.description.sponsorship | Fondos Feder (UE) | |
| dc.description.sponsorship | Unión Europea (UE) | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/32942 | |
| dc.identifier.doi | 10.1103/PhysRevE.92.012101 | |
| dc.identifier.issn | 1539-3755 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1103/PhysRevE.92.012101 | |
| dc.identifier.relatedurl | http://journals.aps.org/ | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/24129 | |
| dc.issue.number | 1 | |
| dc.journal.title | Physical Review E | |
| dc.language.iso | eng | |
| dc.page.final | 012101_9 | |
| dc.page.initial | 012101_1 | |
| dc.publisher | American Physical Society | |
| dc.relation.projectID | FIS2012-35316 | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 536 | |
| dc.subject.keyword | Quantum-systems | |
| dc.subject.keyword | Thermalization | |
| dc.subject.keyword | Entropy | |
| dc.subject.ucm | Termodinámica | |
| dc.subject.unesco | 2213 Termodinámica | |
| dc.title | Irreversible processes without energy dissipation in an isolated Lipkin-Meshkov-Glick model | |
| dc.type | journal article | |
| dc.volume.number | 92 | |
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| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 53fed635-944b-485a-b13a-ea8f9355b7aa | |
| relation.isAuthorOfPublication.latestForDiscovery | 53fed635-944b-485a-b13a-ea8f9355b7aa |
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