Khare, Avinash ; Mandal, Bhabani Prasad (2000) A PT-invariant potential with complex QES eigenvalues Physics Letters A, 272 (1-2). pp. 53-56. ISSN 0375-9601
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S03759...
Related URL: http://dx.doi.org/10.1016/S0375-9601(00)00409-6
Abstract
We show that the quasi-exactly solvable eigenvalues of the Schrödinger equation for the PT-invariant potential V(x)=-(ζcosh2x-iM)2 are complex conjugate pairs in case the parameter M is an even integer while they are real in case M is an odd integer. We also show that whereas the PT symmetry is spontaneously broken in the former case, it is unbroken in the latter case.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 17743 |
| Deposited On: | 16 Nov 2010 12:46 |
| Last Modified: | 04 Jun 2011 06:22 |
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