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Abstract:

We investigate the renormalization group approach to nonequilibrium field theory. We show that it is possible to derive nontrivial renormalization group flow from iterative coarse graining of a closed-time-path action. This renormalization group is different from the usual in quantum field theory textbooks, in that it describes nontrivial noise and dissipation. We work out a specific example where the variation of the closed-time-path action leads to the so-called Kardar-Parisi-Zhang equation, and show that the renormalization group obtained by coarse graining this action, agrees with the dynamical renormalization group derived by directly coarse graining the equations of motion. © 2002 The American Physical Society.

Registro:

Documento: Artículo
Título:Renormalization group and nonequilibrium action in stochastic field theory
Autor:Zanella, J.; Calzetta, E.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires—Ciudad Universitaria, Pabellon I, Buenos Aires, 1428, Argentina
Palabras clave:Anisotropy; Cameras; Charge coupled devices; Electric conductivity; Electric field effects; Electric potential; Electrodes; Electrolysis; Isotropic instability; Optical stripes; Polymer spacers; Williams domain (WD); Nematic liquid crystals; article
Año:2002
Volumen:66
Número:3
DOI: http://dx.doi.org/10.1103/PhysRevE.66.036134
Título revista:Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Título revista abreviado:Phys Rev E.
ISSN:1063651X
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_1063651X_v66_n3_p_Zanella.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1063651X_v66_n3_p_Zanella

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Citas:

---------- APA ----------
Zanella, J. & Calzetta, E. (2002) . Renormalization group and nonequilibrium action in stochastic field theory. Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 66(3).
http://dx.doi.org/10.1103/PhysRevE.66.036134
---------- CHICAGO ----------
Zanella, J., Calzetta, E. "Renormalization group and nonequilibrium action in stochastic field theory" . Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics 66, no. 3 (2002).
http://dx.doi.org/10.1103/PhysRevE.66.036134
---------- MLA ----------
Zanella, J., Calzetta, E. "Renormalization group and nonequilibrium action in stochastic field theory" . Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, vol. 66, no. 3, 2002.
http://dx.doi.org/10.1103/PhysRevE.66.036134
---------- VANCOUVER ----------
Zanella, J., Calzetta, E. Renormalization group and nonequilibrium action in stochastic field theory. Phys Rev E. 2002;66(3).
http://dx.doi.org/10.1103/PhysRevE.66.036134