2020-09-22T06:18:59Zhttp://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/335952020-05-15T10:39:57Zcom_10324_22154com_10324_954com_10324_894col_10324_22155
Losada, Marcelo
Fortin, Sebastian
Gadella Urquiza, Manuel
Holik, Federico
2018
ProducciÃ³n CientÃfica
We introduce a dynamical evolution operator for dealing with unstable physical process, such as scattering resonances, photon emission, decoherence and particle decay. With that aim, we use the formalism of rigged Hilbert space and represent the time evolution of quantum observables in the Heisenberg picture, in such a way that time evolution is nonunitary. This allows to describe observables that are initially noncommutative, but become commutative after time evolution. In other words, a non-abelian algebra of relevant observables becomes abelian when times goes to infinity. We finally present some relevant examples.
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http://uvadoc.uva.es/handle/10324/33595
eng
World Scientific Publishing
Dynamics of algebras in quantum unstable systems
info:eu-repo/semantics/article
TEXT
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