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dc.contributor.author
Fortin, Sebastian Ezequiel
dc.contributor.author
Gadella, M.
dc.contributor.author
Holik, Federico Hernán
dc.contributor.author
Losada, Marcelo Adrián
dc.date.available
2021-10-27T04:18:37Z
dc.date.issued
2020-09
dc.identifier.citation
Fortin, Sebastian Ezequiel; Gadella, M.; Holik, Federico Hernán; Losada, Marcelo Adrián; Gamow vectors formalism applied to the Loschmidt echo; Springer Verlag Berlín; European Physical Journal Plus; 135; 9; 9-2020; 1-18
dc.identifier.issn
2190-5444
dc.identifier.uri
http://hdl.handle.net/11336/145148
dc.description.abstract
Gamow vectors have been developed in order to give a mathematical description for quantum decay phenomena. Mainly, they have been applied to radioactive phenomena, scattering and to some decoherence models. They play a crucial role in the description of quantum irreversible processes and in the formulation of time asymmetry in quantum mechanics. In this paper, we use this formalism to describe a well-known phenomenon of irreversibility: the Loschmidt echo. The standard approach considers that the irreversibility of this phenomenon is the result of an additional term in the backward Hamiltonian. Here, we use the non-Hermitian formalism, where the time evolution is non-unitary. Additionally, we compare the characteristic decay times of this phenomenon with the decoherence ones. We conclude that the Loschmidt echo and the decoherence can be considered as two aspects of the same phenomenon and that there is a mathematical relationship between their corresponding characteristic times.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer Verlag Berlín
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
GAMOW VECTORS
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LOSCHMIDT ECHO
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NON-HERMITIAN
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DECOHERENCE
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Física Atómica, Molecular y Química
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Gamow vectors formalism applied to the Loschmidt echo
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-06T17:47:33Z
dc.journal.volume
135
dc.journal.number
9
dc.journal.pagination
1-18
dc.journal.pais
Alemania
dc.description.fil
Fil: Fortin, Sebastian Ezequiel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Gadella, M.. Universidad de Valladolid; España
dc.description.fil
Fil: Holik, Federico Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
dc.description.fil
Fil: Losada, Marcelo Adrián. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
dc.journal.title
European Physical Journal Plus
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1140/epjp/s13360-020-00756-3
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1140/epjp/s13360-020-00756-3
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