Perturbative method for generalized spectral decompositions

Roberto Laura, Mario Castagnino and Rodolfo M.Id Betan

Physica A: Statistical Mechanics and its Applications, 1999, vol. 271, issue 3, 357-386

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.

Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:271:y:1999:i:3:p:357-386

DOI: 10.1016/S0378-4371(99)00215-0

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