Construction of a unique metric in quasi-Hermitian quantum mechanics: Nonexistence of the charge operator in a 2 × 2 matrix model

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dc.contributor.authorZnojil M.
dc.contributor.authorGeyer H.B.
dc.date.accessioned2011-05-15T16:02:12Z
dc.date.available2011-05-15T16:02:12Z
dc.date.issued2006
dc.description.abstractFor a specific exactly solvable 2 × 2 matrix model with a PT-symmetric Hamiltonian possessing a real spectrum, we construct all the eligible physical metrics Θ > 0 and show that none of them admits a factorization Θ = CP in terms of an involutive charge operator C. Alternative ways of restricting the physical metric to a unique form are briefly discussed. © 2006 Elsevier B.V. All rights reserved.
dc.description.versionArticle
dc.identifier.citationPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.identifier.citation640
dc.identifier.citation02-Jan
dc.identifier.issn3702693
dc.identifier.other10.1016/j.physletb.2006.07.028
dc.identifier.urihttp://hdl.handle.net/10019.1/12357
dc.titleConstruction of a unique metric in quasi-Hermitian quantum mechanics: Nonexistence of the charge operator in a 2 × 2 matrix model
dc.typeArticle
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