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Perturbative method for generalized spectral decompositions

Roberto Laura·Mario Castagnino·Rodolfo M. Id Betan
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Abstract

Imposing analytic properties to states and observables we construct a perturbative method to obtain a generalized biorthogonal system of eigenvalues and eigenvectors for quantum unstable systems. A decay process can be described using this generalized spectral decomposition, and the final generalized state is obtained.

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Roberto Laura, Mario Castagnino, Rodolfo M. Id Betan. 2000-05-17. Perturbative method for generalized spectral decompositions. https://doi.org/10.1016/s0378-4371(99)00215-0

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