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Abstract:

We study the onset of a classical order parameter after a second-order phase transition in quantum field theory. We consider a quantum scalar field theory in which the system-field (long-wavelength modes), interacts with its environment, represented both by a set of scalar fields and by its own short-wavelength modes. We compute the decoherence times for the system-field modes and compare them with the other time scales of the model. We analyze different couplings between the system and the environment for slow quenches. Within our approximations decoherence is in general a short time event. © 2003 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Decoherence in field theory: General couplings and slow quenches
Autor:Lombardo, F.C.; Mazzitelli, F.D.; Rivers, R.J.
Filiación:Departamento de Física, Fac. de Ciencias Exactas Naturales, Universidad de Buenos Aires, Pabellón I, 1428 Buenos Aires, Argentina
Theoretical Physics Group, The Blackett Laboratory, Imperial College, London SW7 2BZ, United Kingdom
Año:2003
Volumen:672
Número:3
Página de inicio:462
Página de fin:486
DOI: http://dx.doi.org/10.1016/j.nuclphysb.2003.08.043
Título revista:Nuclear Physics B
Título revista abreviado:Nucl. Phys. B
ISSN:05503213
CODEN:NUPBB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05503213_v672_n3_p462_Lombardo

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Citas:

---------- APA ----------
Lombardo, F.C., Mazzitelli, F.D. & Rivers, R.J. (2003) . Decoherence in field theory: General couplings and slow quenches. Nuclear Physics B, 672(3), 462-486.
http://dx.doi.org/10.1016/j.nuclphysb.2003.08.043
---------- CHICAGO ----------
Lombardo, F.C., Mazzitelli, F.D., Rivers, R.J. "Decoherence in field theory: General couplings and slow quenches" . Nuclear Physics B 672, no. 3 (2003) : 462-486.
http://dx.doi.org/10.1016/j.nuclphysb.2003.08.043
---------- MLA ----------
Lombardo, F.C., Mazzitelli, F.D., Rivers, R.J. "Decoherence in field theory: General couplings and slow quenches" . Nuclear Physics B, vol. 672, no. 3, 2003, pp. 462-486.
http://dx.doi.org/10.1016/j.nuclphysb.2003.08.043
---------- VANCOUVER ----------
Lombardo, F.C., Mazzitelli, F.D., Rivers, R.J. Decoherence in field theory: General couplings and slow quenches. Nucl. Phys. B. 2003;672(3):462-486.
http://dx.doi.org/10.1016/j.nuclphysb.2003.08.043