dc.creator | Archilla, Juan F. R. | es |
dc.creator | Bajārs, Jānis | es |
dc.date.accessioned | 2024-06-18T09:31:54Z | |
dc.date.available | 2024-06-18T09:31:54Z | |
dc.date.issued | 2023-04-27 | |
dc.identifier.citation | Archilla, J.F.R. y Bajārs, J. (2023). Spectral Properties of Exact Polarobreathers in Semiclassical Systems. Axioms, 12 (5), 437-1-437-26. https://doi.org/10.3390/axioms12050437. | |
dc.identifier.issn | 2075-1680 | es |
dc.identifier.uri | https://hdl.handle.net/11441/160610 | |
dc.description.abstract | In this paper, we study the spectral properties of polarobreathers, that is, breathers carrying charge in a one-dimensional semiclassical model. We adapt recently developed numerical methods that preserve the charge probability at every step of time integration without using the Born–Oppenheimer approximation, which is the assumption that the electron is not at equilibrium with the atoms or ions. We develop an algorithm to obtain exact polarobreather solutions. The properties of polarobreathers, both stationary and moving ones, are deduced from the lattice and charge variable spectra in the frequency–momentum space. We consider an efficient approach to produce approximate polarobreathers with long lifespans. Their spectrum allows for the determination of the initial conditions and the necessary parameters to obtain numerically exact polarobreathers. The spectra of exact polarobreathers become extremely simple and easy to interpret. We also solve the problem that the charge frequency is not an observable, but the frequency of the charge probability certainly is an observable. | es |
dc.description.sponsorship | MICINN PID2019-109175GB-C22 | es |
dc.description.sponsorship | Junta de Andalucía US-1380977 | es |
dc.description.sponsorship | Universidad de Sevilla VIIPPITUS 2023 | es |
dc.description.sponsorship | Latvian Council of Science: Post-doctoral Research Aid Project No. 1.1.1.2/VIAA/4/20/617 “Data-Driven Nonlinear Wave Modelling” | es |
dc.format | application/pdf | es |
dc.format.extent | 26 | es |
dc.language.iso | eng | es |
dc.publisher | MDPI | es |
dc.relation.ispartof | Axioms, 12 (5), 437-1-437-26. | |
dc.rights | Atribución-NoComercial 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0/ | * |
dc.subject | nonlinear waves; discrete breathers; polarobreathers; charge transport; spectra | es |
dc.title | Spectral Properties of Exact Polarobreathers in Semiclassical Systems | es |
dc.type | info:eu-repo/semantics/article | es |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física Aplicada I | es |
dc.relation.publisherversion | https://doi.org/10.3390/axioms12050437 | es |
dc.identifier.doi | 10.3390/axioms12050437 | es |
dc.contributor.group | FQM280: Física No Lineal | es |
idus.validador.nota | Gold Open Acces Journal, invitation with APC waiver | es |
dc.journaltitle | Axioms | es |
dc.publication.volumen | 12 | es |
dc.publication.issue | 5 | es |
dc.publication.initialPage | 437-1 | es |
dc.publication.endPage | 437-26 | es |