Artículo

La versión final de este artículo es de uso interno. El editor solo permite incluir en el repositorio el artículo en su versión post-print. Por favor, si usted la posee enviela a
Consulte la política de Acceso Abierto del editor

Abstract:

A many-particle Hamiltonian, where the interaction term conserves the number of particles, is considered. A master equation for the populations of the different levels is derived in an exact way. It results in a local equation with time-dependent coefficients, which can be identified with the transition probabilities in the golden rule approximation. A reinterpretation of the model as a set of coupled harmonic oscillators enables one to obtain for one of them an exact local Langevin equation, with time-dependent coefficients. © 1998 Elsevier Science B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Exact derivation of the Langevin and master equations for harmonic quantum Brownian motion
Autor:Garcia-Alvareza, E.T.; Gaioli, F.H.
Filiación:Inst. Astronomia y Fis. del Espacio, C.C. 67, Suc. 28, 1428 Buenos Aires, Argentina
Departamento de Física, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:Brownian motion; Irreversibility; Langevin equation; Master equation; Approximation theory; Integral equations; Mathematical models; Probability; Quantum theory; Coupled harmonic oscillators; Langevin equation; Brownian movement
Año:1998
Volumen:257
Número:1-4
Página de inicio:298
Página de fin:302
Título revista:Physica A: Statistical Mechanics and its Applications
Título revista abreviado:Phys A Stat Mech Appl
ISSN:03784371
CODEN:PHYAD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03784371_v257_n1-4_p298_GarciaAlvareza

Referencias:

  • Ford, G.W., Kac, M., Mazur, P., (1965) J. Math. Phys., 6, p. 504
  • Ullersma, P., (1966) Physica, 32, p. 27
  • Braun, E., Godoy, S.V., (1977) Physica A, 86, p. 337
  • Van Kampen, N.G., (1992) Stochastic Processes in Physics and Chemistry, , Ch. XVII, North-Holland, Amsterdam
  • Gaioli, F.H., Garcia Alvarez, E.T., Guevara, J., (1997) Int. J. Theor. Phys., 36, p. 2167

Citas:

---------- APA ----------
Garcia-Alvareza, E.T. & Gaioli, F.H. (1998) . Exact derivation of the Langevin and master equations for harmonic quantum Brownian motion. Physica A: Statistical Mechanics and its Applications, 257(1-4), 298-302.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03784371_v257_n1-4_p298_GarciaAlvareza [ ]
---------- CHICAGO ----------
Garcia-Alvareza, E.T., Gaioli, F.H. "Exact derivation of the Langevin and master equations for harmonic quantum Brownian motion" . Physica A: Statistical Mechanics and its Applications 257, no. 1-4 (1998) : 298-302.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03784371_v257_n1-4_p298_GarciaAlvareza [ ]
---------- MLA ----------
Garcia-Alvareza, E.T., Gaioli, F.H. "Exact derivation of the Langevin and master equations for harmonic quantum Brownian motion" . Physica A: Statistical Mechanics and its Applications, vol. 257, no. 1-4, 1998, pp. 298-302.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03784371_v257_n1-4_p298_GarciaAlvareza [ ]
---------- VANCOUVER ----------
Garcia-Alvareza, E.T., Gaioli, F.H. Exact derivation of the Langevin and master equations for harmonic quantum Brownian motion. Phys A Stat Mech Appl. 1998;257(1-4):298-302.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03784371_v257_n1-4_p298_GarciaAlvareza [ ]