Eigenvalues and eigenfunctions of the anharmonic oscillator V(x, y) = x2y2

We obtain sufficiently accurate eigenvalues and eigenfunctions for the anharmonic oscillator with potential V(x, y) = x<sup>2</sup> y<sup>2</sup> by means of three different methods. Our results strongly suggest that the spectrum of this oscillator is discrete in agreement wi...

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Detalles Bibliográficos
Autores: Fernández, Francisco Marcelo, García, Javier
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Institución:Universidad Nacional de La Plata
Repositorio:SEDICI (UNLP)
Idioma:inglés
OAI Identifier:oai:sedici.unlp.edu.ar:10915/85279
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85279
Access Level:acceso abierto
Palabra clave:Física
Anharmonic oscillator
connected-moments expansion
discrete spectrum
point-group symmetry
Rayleigh-Ritz method
Descripción
Sumario:We obtain sufficiently accurate eigenvalues and eigenfunctions for the anharmonic oscillator with potential V(x, y) = x<sup>2</sup> y<sup>2</sup> by means of three different methods. Our results strongly suggest that the spectrum of this oscillator is discrete in agreement with early rigorous mathematical proofs and against a recent statement that cast doubts about it