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Pseudo-Hermiticity, PT-symmetry, and the Metric Operator

Ali Mostafazadeh
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Abstract

The main achievements of Pseudo-Hermitian Quantum Mechanics and its distinction with the indefinite-metric quantum theories are reviewed. The issue of the non-uniqueness of the metric operator and its consequences for defining the observables are discussed. A systematic perturbative expression for the most general metric operator is offered and its application for a toy model is outlined.

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Ali Mostafazadeh. 2005-08-29. Pseudo-Hermiticity, PT-symmetry, and the Metric Operator. https://doi.org/10.1007/s10582-005-0121-z

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