PT-symmetric square well

Authors
Citation
M. Znojil, PT-symmetric square well, PHYS LETT A, 285(1-2), 2001, pp. 7-10
Citations number
47
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
0375-9601 → ACNP
Volume
285
Issue
1-2
Year of publication
2001
Pages
7 - 10
Database
ISI
SICI code
0375-9601(20010625)285:1-2<7:PSW>2.0.ZU;2-U
Abstract
Below a (comparatively large) measure of non-hermiticity Z = Z(0)((crit)) > 0 of a PT symmetrically complexified square well, bound states are constru cted non-numerically. All their energies prove real and continuous in the ( Hermitian) limit Z --> 0. Beyond the threshold Z(0)((crit)) (and, in genera l, beyond Z(m)((crit)) at m = 0, 1,...) the lowest two real energies (i.e., E-2m and E2m+l) are shown to merge and disappear. (C) 2001 Elsevier Scienc e B.V. All rights reserved.