We consider a bosonic σ-model coupled to two-dimensional gravity. In the semiclassical limit, c → -∞, we compute the gravity dressing of the β-functions at two-loop order in the matter fields. We find that the corrections due to the presence of dynamical gravity are not expressible simply in terms of a multiplicative factor as previously obtained at the one-loop level. Our result indicates that the critical points of the theory are non-trivially influenced and modified by the induced gravity.

Penati, S., Santambrogio, A., & Zanon, D. (1997). Renormalization group flows in σ-models coupled to two-dimensional dynamical gravity. NUCLEAR PHYSICS. B, 483(1-2), 495-513 [10.1016/S0550-3213(96)00510-X].

Renormalization group flows in σ-models coupled to two-dimensional dynamical gravity

Penati, S.
Membro del Collaboration Group
;
1997

Abstract

We consider a bosonic σ-model coupled to two-dimensional gravity. In the semiclassical limit, c → -∞, we compute the gravity dressing of the β-functions at two-loop order in the matter fields. We find that the corrections due to the presence of dynamical gravity are not expressible simply in terms of a multiplicative factor as previously obtained at the one-loop level. Our result indicates that the critical points of the theory are non-trivially influenced and modified by the induced gravity.
Articolo in rivista - Articolo scientifico
hepth
English
495
513
19
Penati, S., Santambrogio, A., & Zanon, D. (1997). Renormalization group flows in σ-models coupled to two-dimensional dynamical gravity. NUCLEAR PHYSICS. B, 483(1-2), 495-513 [10.1016/S0550-3213(96)00510-X].
Penati, S; Santambrogio, A; Zanon, D
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/186977
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