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
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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
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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
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Volumen: | 66
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Número: | 3
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DOI: |
http://dx.doi.org/10.1103/PhysRevE.66.036134 |
Título revista: | Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
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Título revista abreviado: | Phys Rev E.
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ISSN: | 1063651X
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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