Behera, S. N. ; Khare, Avinash (1981) When does the Rayleigh-Schrodinger perturbation series for the energy eigenvalue have nothing to do with the exact value? Physics Letters B, 104 (2). pp. 169-172. ISSN 0370-2693
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/037026...
Related URL: http://dx.doi.org/10.1016/0370-2693(81)90583-9
Abstract
On the basis of some exactly solvable models we suggest that the Rayleigh-Schrodinger perturbation series for the energy eigenvalue may have nothing to do with the corresponding exact value in case the vacuum expectation value of the system changes discontinuously, i.e. the system undergoes first-order phase transition.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 17690 |
| Deposited On: | 16 Nov 2010 12:51 |
| Last Modified: | 04 Jun 2011 07:00 |
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