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Perturbative method for generalized spectral decompositions

Quantum Physics 2009-11-06 v1

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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Cite

@article{arxiv.quant-ph/0005073,
  title  = {Perturbative method for generalized spectral decompositions},
  author = {Roberto Laura and Mario Castagnino and Rodolfo M. Id Betan},
  journal= {arXiv preprint arXiv:quant-ph/0005073},
  year   = {2009}
}

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21 Pages