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Título: | Gauge symmetry and Slavnov-Taylor identities for randomly stirred fluids |
Autor: | Berera, Arjun; Hochberg, David CSIC ORCID | Palabras clave: | [PACS] Field-theoretic formulations and renormalization [PACS] Classical field theories [PACS] Field theory |
Fecha de publicación: | 19-dic-2007 | Editor: | American Physical Society | Citación: | Physical Review Letters 99(25): 254501 (2007) | Resumen: | The path integral for randomly forced incompressible fluids is shown to have an underlying Becchi-Rouet-Stora (BRS) symmetry as a consequence of Galilean invariance. This symmetry must be respected to have a consistent generating functional, free from both an overall infinite factor and spurious relations amongst correlation functions. We present a procedure for respecting this BRS symmetry, akin to gauge fixing in quantum field theory. Relations are derived between correlation functions of this gauge-fixed, BRS symmetric theory, analogous to the Slavnov-Taylor identities of quantum field theory. | Descripción: | 4 pages, no figures.-- PACS nrs.: 47.27.ef; 03.50.-z; 11.10.-z.-- ISI Article Identifier: 000251887100027.-- ArXiv pre-print available at: http://arxiv.org/abs/0711.0825 | Versión del editor: | http://dx.doi.org/10.1103/PhysRevLett.99.254501 | URI: | http://hdl.handle.net/10261/13015 | DOI: | 10.1103/PhysRevLett.99.254501 | ISSN: | 0031-9007 |
Aparece en las colecciones: | (CAB) Artículos |
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Gauge_symmetry.pdf | 124,18 kB | Adobe PDF | Visualizar/Abrir |
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