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Decays of degeneracies in PT-symmetric ring-shaped lattices
- 1.0374529 - ÚJF 2012 RIV NL eng J - Journal Article
Znojil, Miloslav
Decays of degeneracies in PT-symmetric ring-shaped lattices.
Physics Letters. A. Roč. 375, č. 39 (2011), s. 3435-3441. ISSN 0375-9601. E-ISSN 1873-2429
R&D Projects: GA ČR GAP203/11/1433
Institutional research plan: CEZ:AV0Z10480505
Keywords : NON-HERMITIAN HAMILTONIANS * quantum-mechanics * OBSERVABILITY
Subject RIV: BE - Theoretical Physics
Impact factor: 1.632, year: 2011
Many apparently non-Hermitian ring-shaped discrete lattices share the appeal with their more popular linear predecessors. Irrespectively of the change of the topology, their dynamics controlled by the nearest-neighbor interaction is shown to remain phenomenologically interesting. For the perturbation-caused removals of spectral degeneracy at exceptional points, in particular, alternative scenarios are illustrated via solvable examples. (C) 2011 Elsevier B.V. All rights reserved.
Permanent Link: http://hdl.handle.net/11104/0207432
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