RT info:eu-repo/semantics/article
T1 Dynamics of algebras in quantum unstable systems
A1 Losada, Marcelo
A1 Fortin, Sebastian
A1 Gadella Urquiza, Manuel
A1 Holik, Federico
AB 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.
PB World Scientific Publishing
YR 2018
FD 2018
LK http://uvadoc.uva.es/handle/10324/33595
UL http://uvadoc.uva.es/handle/10324/33595
LA eng
NO International Journal of Modern Physics A, 2018, Vol. 33, No. 18
NO ProducciÃ³n CientÃfica
DS UVaDOC
RD 03-jul-2020