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Internal Time Superoperator for Quantum Systems with Diagonal Singularity

Roberto Laura·Adolfo R. Ordoniez
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Abstract

We generalize the concepts of Internal Time Superoperator, its associated non unitary similarity transformations and Liapounov variables, to quantum systems with diagonal singularity, and we give a constructive proof of the existence of these superoperators for systems with purely diagonal Hamiltonian having uniform absolutely continuous spectrum on the interval from zero to infinity.

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Roberto Laura, Adolfo R. Ordoniez. 1999-03-29. Internal Time Superoperator for Quantum Systems with Diagonal Singularity. https://arxiv.org/abs/quant-ph/9903090

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