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Title: Dynamics of algebras in quantum unstable systems
Authors: Losada, Marcelo
Fortin, Sebastian
Gadella, Manuel
Holik, Federico
Issue Date: 2018
Publisher: World Scientific Publishing
Description: Producción Científica
Citation: International Journal of Modern Physics A, 2018, Vol. 33, No. 18
Abstract: 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.
Peer Review: SI
Sponsor: Ministerio de Economía, Industria y Competitividad (Project TM2014-57129-C2-1-P with EU-FEDER support)
Junta de Castilla y León (programa de apoyo a proyectos de investigación - Ref. VA057U16)
Publisher Version:
Language: eng
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:FM - Artículos de revista

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