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Isospectral Hamiltonians from Moyal products

Carla Figueira de Morisson Faria·Andreas Fring
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Abstract

Recently Scholtz and Geyer proposed a very efficient method to compute metric operators for non-Hermitian Hamiltonians from Moyal products. We develop these ideas further and suggest to use a more symmetrical definition for the Moyal products, because they lead to simpler differential equations. In addition, we demonstrate how to use this approach to determine the Hermitian counterpart for a Pseudo-Hermitian Hamiltonian. We illustrate our suggestions with the explicitly solvable example of the -x^4-potential and the ubiquitous harmonic oscillator in a complex cubic potential.

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Carla Figueira de Morisson Faria, Andreas Fring. 2006-07-22. Isospectral Hamiltonians from Moyal products. https://doi.org/10.1007/s10582-006-0386-x

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