INIFTA 05425
INSTITUTO DE INVESTIGACIONES FISICO-QUIMICAS TEORICAS Y APLICADAS
Unidad Ejecutora - UE
artículos
Título:
Critical parameters for non-hermitian Hamiltonians
Autor/es:
FRANCISCO M. FERNÁNDEZ; JAVIER GARCÍA
Revista:
APPLIED MATHEMATICS AND COMPUTATION
Editorial:
ELSEVIER SCIENCE INC
Referencias:
Lugar: Amsterdam; Año: 2014 vol. 247 p. 141 - 151
ISSN:
0096-3003
Resumen:
We calculate accurate critical parameters for a class of non-hermitian Hamiltonians by means of the diagonalization method. We study three one-dimensional models and two perturbed rigid rotors with PT symmetry. One of the latter models illustrates the necessity of a more general condition for the appearance of real eigenvalues that we also discuss here.
