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Benhassine, B.; Farine, M.; Hernández, E.S.; Idier, D.; Remaud, B.; Sébille, F. "From stochastic phase-space evolution to brownian motion in collective space" (1994) Nuclear Physics, Section A. 567(3):663-684
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Abstract:

Within the framework of stochastic transport equations in phase space, we study the dynamics of fluctuations on collective variables in homogeneous fermion systems. The transport coefficients are formally deduced in the relaxation-time approximation and a general method to compute dynamically the dispersions of collective observables is proposed as a set of coupled equations: respectively, the BUU/Landau-Vlasov equation for the average phase-space trajectories and the equations for the averages and dispersions of the observables. Independently, we derive the general covariance matrix of phase-space fluctuations and then by projection, the dispersion on collective variables at equilibrium. Detailed numerical applications of the formalism are given; they show that the dynamics of fluctuations can be extracted from noisy numerical simulations and that the leading parameter for collective fluctuations is the excitation energy, whatever is its degree of thermalization. © 1994.

Registro:

Documento: Artículo
Título:From stochastic phase-space evolution to brownian motion in collective space
Autor:Benhassine, B.; Farine, M.; Hernández, E.S.; Idier, D.; Remaud, B.; Sébille, F.
Filiación:Laboratoire de Physique Nucléaire UA IN2P3, CNRS, Université de Nantes N057, 2, rue de la Houssinière, F-44072 Nantes Cedex, France
Departamento de Física - Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Ecole navale, Lamvéoc-Loulmic, 29240 Brest-Naval, France
Año:1994
Volumen:567
Número:3
Página de inicio:663
Página de fin:684
DOI: http://dx.doi.org/10.1016/0375-9474(94)90031-0
Título revista:Nuclear Physics, Section A
Título revista abreviado:Nucl. Phys. A
ISSN:03759474
CODEN:NUPAB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03759474_v567_n3_p663_Benhassine

Referencias:

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Citas:

---------- APA ----------
Benhassine, B., Farine, M., Hernández, E.S., Idier, D., Remaud, B. & Sébille, F. (1994) . From stochastic phase-space evolution to brownian motion in collective space. Nuclear Physics, Section A, 567(3), 663-684.
http://dx.doi.org/10.1016/0375-9474(94)90031-0
---------- CHICAGO ----------
Benhassine, B., Farine, M., Hernández, E.S., Idier, D., Remaud, B., Sébille, F. "From stochastic phase-space evolution to brownian motion in collective space" . Nuclear Physics, Section A 567, no. 3 (1994) : 663-684.
http://dx.doi.org/10.1016/0375-9474(94)90031-0
---------- MLA ----------
Benhassine, B., Farine, M., Hernández, E.S., Idier, D., Remaud, B., Sébille, F. "From stochastic phase-space evolution to brownian motion in collective space" . Nuclear Physics, Section A, vol. 567, no. 3, 1994, pp. 663-684.
http://dx.doi.org/10.1016/0375-9474(94)90031-0
---------- VANCOUVER ----------
Benhassine, B., Farine, M., Hernández, E.S., Idier, D., Remaud, B., Sébille, F. From stochastic phase-space evolution to brownian motion in collective space. Nucl. Phys. A. 1994;567(3):663-684.
http://dx.doi.org/10.1016/0375-9474(94)90031-0