Abstract:
We analyze the onset of classical behaviour in a scalar field after a continuous phase transition, in which the system-field, the long wavelength order parameter of the model, interacts with an environment of its own short-wavelength modes. We compute the decoherence time for the system-field modes from the master equation and compare it with the other time scales of the model. Within our approximations the decoherence time is in general the smallest dynamical time scale. Demanding diagonalisation of the decoherence functional produces identical results. The inclusion of other environmental fields makes diagonalisation occur even earlier.
Registro:
Documento: |
Artículo
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Título: | Onset of classical behaviour after a phase transition |
Autor: | Rivers, R.J.; Lombardo, F.C. |
Filiación: | Theoretical Physics Group, Blackett Laboratory, Imperial College, London SW7 2BZ, United Kingdom Departamento de Física, Facultad de Ciencias Exactas y Naturales, Pabellón I, 1428 Buenos Aires, Argentina
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Año: | 2005
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Volumen: | 35
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Número: | 2 B
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Página de inicio: | 397
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Página de fin: | 402
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DOI: |
http://dx.doi.org/10.1590/S0103-97332005000300006 |
Título revista: | Brazilian Journal of Physics
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Título revista abreviado: | Braz. J. Phys.
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ISSN: | 01039733
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PDF: | https://bibliotecadigital.exactas.uba.ar/download/paper/paper_01039733_v35_n2B_p397_Rivers.pdf |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01039733_v35_n2B_p397_Rivers |
Referencias:
- Kolb, E., Turner, M., (1990) The Early Universe, , Addison Wesley, Reading, Mass
- Guth, A., Pi, S.Y., (1991) Phys. Rev. D, 32, p. 1899
- Lombardo, F.C., Mazzitelli, F.D., Monteoliva, D., (2000) Phys. Rev. D, 62, p. 045016
- Lombardo, F.C., Mazzitelli, F.D., Rivers, R.J., (2001) Phys. Lett., 6523, p. 317
- Rivers, R.J., Lombardo, F.C., Mazzitelli, F.D., (2002) Phys. Lett. B, 539, p. 1
- Rivers, R.J., Lombardo, F.C., Mazzitelli, F.D., (2003) Nucl. Phys. B, 672, p. 462
- Lombardo, F.C., Influence Functional Approach to Decoherence during Inflation, , these proceedings
- Lombardo, F.C., Mazzitelli, F.D., (1996) Phys. Rev. D, 53, p. 2001
- Feynman, R., Vernon, F., (1963) Ann. Phys. (N.Y.), 24, p. 118
- Kibble, T.W.B., (1980) Phys. Rep., 67, p. 183
- Griffiths, R.B., (1984) J. Stat. Phys., 36, p. 219
- Omnès, R., (1988) J. Stat. Phys., 53, p. 893
- (1990) Ann. Phys., 201, p. 354
- (1992) Rev. Mod. Phys., 64, p. 339
- Gell-Mann, M., Hartle, J.B., (1993) Phys. Rev. D, 47, p. 3345
- Halliwell, J.J., (1999) Phys. Rev. D, 60, p. 105031
- note; Boyanovsky, D., De Vega, H.J., Holman, R., (1994) Phys. Rev. D, 49, p. 2769
- Boyanovsky, D., De Vega, H.J., Holman, R., Lee, D.-S., Singh, A., (1995) Phys. Rev. D, 51, p. 4419
- Ramsey, S.A., Hu, B.L., (1997) Phys. Rev. D, 56, p. 661
- Cooper, F., Habib, S., Kluger, Y., Mottola, E., (1997) Phys. Rev. D, 55, p. 6471
- Stephens, G.J., Calzetta, E.A., Hu, B.L., Ramsey, S.A., (1999) Phys. Rev. D, 59, p. 045009
- N.G. Busca, F.C. Lombardo, F.D. Mazzitelli, and R.J. Rivers, work in progress; Kim, S.P., Lee, C.H., (2002) Phys. Rev. D, 65, p. 045013
Citas:
---------- APA ----------
Rivers, R.J. & Lombardo, F.C.
(2005)
. Onset of classical behaviour after a phase transition. Brazilian Journal of Physics, 35(2 B), 397-402.
http://dx.doi.org/10.1590/S0103-97332005000300006---------- CHICAGO ----------
Rivers, R.J., Lombardo, F.C.
"Onset of classical behaviour after a phase transition"
. Brazilian Journal of Physics 35, no. 2 B
(2005) : 397-402.
http://dx.doi.org/10.1590/S0103-97332005000300006---------- MLA ----------
Rivers, R.J., Lombardo, F.C.
"Onset of classical behaviour after a phase transition"
. Brazilian Journal of Physics, vol. 35, no. 2 B, 2005, pp. 397-402.
http://dx.doi.org/10.1590/S0103-97332005000300006---------- VANCOUVER ----------
Rivers, R.J., Lombardo, F.C. Onset of classical behaviour after a phase transition. Braz. J. Phys. 2005;35(2 B):397-402.
http://dx.doi.org/10.1590/S0103-97332005000300006