General Aspects of PT-Symmetric and P-Self-Adjoint Quantum Theory in a Krein Space

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dc.creatorTanaka, Toshiaki
dc.date2006-05-03
dc.date2006-08-25
dc.date.accessioned2026-07-07T10:46:34Z
dc.date.available2026-07-07T10:46:34Z
dc.descriptionIn our previous work, we proposed a mathematical framework for PT-symmetric quantum theory, and in particular constructed a Krein space in which PT-symmetric operators would naturally act. In this work, we explore and discuss various general consequences and aspects of the theory defined in the Krein space, not only spectral property and PT symmetry breaking but also several issues, crucial for the theory to be physically acceptable, such as time evolution of state vectors, probability interpretation, uncertainty relation, classical-quantum correspondence, completeness, existence of a basis, and so on. In particular, we show that for a given real classical system we can always construct the corresponding PT-symmetric quantum system, which indicates that PT-symmetric theory in the Krein space is another quantization scheme rather than a generalization of the traditional Hermitian one in the Hilbert space. We propose a postulate for an operator to be a physical observable in the framework.
dc.description32 pages, no figures; explanation, discussion and references added
dc.identifierhttps://arxiv.org/abs/hep-th/0605035
dc.identifierhttp://arxiv.org/abs/hep-th/0605035
dc.identifierJ.Phys.A39:14175-14203,2006
dc.identifierdoi:10.1088/0305-4470/39/45/025
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183274
dc.subjectHigh Energy Physics - Theory
dc.subjectMathematical Physics
dc.subjectFunctional Analysis
dc.subjectQuantum Physics
dc.titleGeneral Aspects of PT-Symmetric and P-Self-Adjoint Quantum Theory in a Krein Space
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