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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Formato: | Articulo Preprint |
Lenguaje: | Inglés |
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2014
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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 |
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I19-R120-10915-97408 |
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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 |
bdutipo_str |
Repositorios |
_version_ |
1764820492704808960 |