RST model (original) (raw)
Le modèle Russo–Susskind–Thorlacius, ou modèle RST, est une variante du modèle CGHS permettant de tenir compte des (en). Il est nommé d'après ses trois auteurs : , Leonard Susskind et .
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| dbo:abstract | Le modèle Russo–Susskind–Thorlacius, ou modèle RST, est une variante du modèle CGHS permettant de tenir compte des (en). Il est nommé d'après ses trois auteurs : , Leonard Susskind et . (fr) The Russo–Susskind–Thorlacius model or RST model in short is a modification of the CGHS model to take care of conformal anomalies and render it analytically soluble. In the CGHS model, if we include Faddeev–Popov ghosts to gauge-fix diffeomorphisms in the , they contribute an anomaly of -24. Each matter field contributes an anomaly of 1. So, unless N=24, we will have gravitational anomalies.To the CGHS action , the following term is added, where κ is either or depending upon whether ghosts are considered. The nonlocal term leads to nonlocality.In the conformal gauge, . It might appear as if the theory is local in the conformal gauge, but this overlooks the fact that the Raychaudhuri equations are still nonlocal. (en) |
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| rdfs:comment | Le modèle Russo–Susskind–Thorlacius, ou modèle RST, est une variante du modèle CGHS permettant de tenir compte des (en). Il est nommé d'après ses trois auteurs : , Leonard Susskind et . (fr) The Russo–Susskind–Thorlacius model or RST model in short is a modification of the CGHS model to take care of conformal anomalies and render it analytically soluble. In the CGHS model, if we include Faddeev–Popov ghosts to gauge-fix diffeomorphisms in the , they contribute an anomaly of -24. Each matter field contributes an anomaly of 1. So, unless N=24, we will have gravitational anomalies.To the CGHS action , the following term is added, where κ is either or depending upon whether ghosts are considered. The nonlocal term leads to nonlocality.In the conformal gauge, . (en) |
| rdfs:label | Modèle RST (fr) RST model (en) |
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