On the crossing of the energy levels of a parameter-dependent quantum-mechanical Hamiltonian

The non-crossing rule for the energy levels of a parameter-dependent Hamiltonian is revisited and a flaw in a commonly accepted proof is revealed. Some aspects of avoided crossings are illustrated by means of simple models. One of them shows the close relationship between avoided crossings and excep...

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Autor principal: Fernández, Francisco Marcelo
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2014
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/97408
https://ri.conicet.gov.ar/11336/5147
http://arxiv.org/abs/1405.6414
http://link.springer.com/article/10.1007%2Fs10910-014-0386-1
Aporte de:
id I19-R120-10915-97408
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Avoided crossing
Non-crossing rule
Parameter-dependent operators
Exceptional points
spellingShingle Física
Avoided crossing
Non-crossing rule
Parameter-dependent operators
Exceptional points
Fernández, Francisco Marcelo
On the crossing of the energy levels of a parameter-dependent quantum-mechanical Hamiltonian
topic_facet Física
Avoided crossing
Non-crossing rule
Parameter-dependent operators
Exceptional points
description The non-crossing rule for the energy levels of a parameter-dependent Hamiltonian is revisited and a flaw in a commonly accepted proof is revealed. Some aspects of avoided crossings are illustrated by means of simple models. One of them shows the close relationship between avoided crossings and exceptional points.
format Articulo
Preprint
author Fernández, Francisco Marcelo
author_facet Fernández, Francisco Marcelo
author_sort Fernández, Francisco Marcelo
title On the crossing of the energy levels of a parameter-dependent quantum-mechanical Hamiltonian
title_short On the crossing of the energy levels of a parameter-dependent quantum-mechanical Hamiltonian
title_full On the crossing of the energy levels of a parameter-dependent quantum-mechanical Hamiltonian
title_fullStr On the crossing of the energy levels of a parameter-dependent quantum-mechanical Hamiltonian
title_full_unstemmed On the crossing of the energy levels of a parameter-dependent quantum-mechanical Hamiltonian
title_sort on the crossing of the energy levels of a parameter-dependent quantum-mechanical hamiltonian
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/97408
https://ri.conicet.gov.ar/11336/5147
http://arxiv.org/abs/1405.6414
http://link.springer.com/article/10.1007%2Fs10910-014-0386-1
work_keys_str_mv AT fernandezfranciscomarcelo onthecrossingoftheenergylevelsofaparameterdependentquantummechanicalhamiltonian
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