IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
artículos
Título:
Is the decoherence of a system the result of its interaction with the environment?
Autor/es:
MARIO CASTAGNINO; SEBASTIAN FORTIN; OLIMPIA LOMBARDI
Revista:
MODERN PHYSICS LETTERS A
Editorial:
WORLD SCIENTIFIC PUBL CO PTE LTD
Referencias:
Lugar: London, UK; Año: 2010 vol. 25 p. 1431 - 1439
ISSN:
0217-7323
Resumen:
According to a usual reading, decoherence is a process resulting from the interaction between a small system and its large environment where information and energy are dissipated. The particular models treated in the literature on the subject reinforce this idea since, in general, the behavior of a particle immersed in a large "bath" composed by many particles is studied. The aim of this letter is to warn against this usual simplified reading. By means of the analysis of a well-known model, we will show that decoherence may occur in a system interacting with an environment consisting of only one particle.