INVESTIGADORES
IGURI Sergio Manuel
artículos
Título:
Minimal irreversible quantum mechanics. The decay of unstable states
Autor/es:
DIEGO G. ARBO; MARIO A. CASTAGNINO; FABIAN H. GAIOLI; SERGIO IGURI
Revista:
PHYSICA A - STATISTICAL AND THEORETICAL PHYSICS
Editorial:
Elsevier B.V.
Referencias:
Lugar: Amsterdam; Año: 2000 vol. 277 p. 469 - 495
ISSN:
0378-4371
Resumen:
Brownian motion is modelled by a harmonic oscillator (Brownian particle) interacting with a continuous set of uncoupled harmonic oscillators. The interaction is linear in the coordinates and the momenta. The model has an analytical solution that is used to study the time evolution of the reduced density operator. It is derived in a closed form, in the one-particle sector of the model. The irreversible behavior of the Brownian particle is described by a reduced density matrix.
