Zobrazeno 1 - 10
of 577
pro vyhledávání: '"CACCIATORI, P"'
In the framework of the analog Hawking radiation for dielectric media, we analyze a toy-model and also the 2D reduction of the Hopfield model for a specific monotone and realistic profile for the refractive index. We are able to provide exact solutio
Externí odkaz:
http://arxiv.org/abs/2406.04181
We discuss general one and two-loops banana diagrams with arbitrary masses on the de Sitter spacetime by using direct methods of dS quantum field theory in the dimensional regularization approach. In the one-loop case we also compute the effective po
Externí odkaz:
http://arxiv.org/abs/2403.13145
We discuss general one and two-loop banana diagrams and one-loop diagrams with external lines with arbitrary masses on the anti de Sitter spacetime by using methods of AdS quantum field theory in the dimensional regularization approach. The banana di
Externí odkaz:
http://arxiv.org/abs/2403.13142
We present a complete computation of superstring scattering amplitudes at tree level, for the case of Neveu-Schwarz insertions. Mathematically, this is to say that we determine explicitly the superstring measure on the moduli space $\mathcal{M}_{0,n,
Externí odkaz:
http://arxiv.org/abs/2403.09600
The first analytic solutions representing baryonic layers living at finite baryon density within a constant magnetic field in the gauged Skyrme model are constructed. A remarkable feature of these configurations is that, if the Skyrme term is neglect
Externí odkaz:
http://arxiv.org/abs/2402.07551
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-32 (2024)
Abstract We present a complete computation of superstring scattering amplitudes at tree level, for the case of Neveu-Schwarz insertions. Mathematically, this is to say that we determine explicitly the superstring measure on the moduli space M 0 , n ,
Externí odkaz:
https://doaj.org/article/011a71e69f004425abe7e3cec2d3fb26
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-42 (2024)
Abstract We discuss general one and two-loop banana diagrams and one-loop diagrams with external lines with arbitrary masses on the anti de Sitter spacetime by using methods of AdS quantum field theory in the dimensional regularization approach. The
Externí odkaz:
https://doaj.org/article/447a6602101d4ba7a47d14581d940ed0
Autor:
Cacciatori, S. L., Ursino, P.
We investigate the notion of concentration locus introduced in \cite{CacUrs22}, in the case of Riemann manifolds sequences and its relationship with the volume of tubes. After providing a general formula for the volume of a tube around a Riemannian s
Externí odkaz:
http://arxiv.org/abs/2308.00080
We study the conformally reduced $R+R^2$ theory of gravity and we show that the theory is asymptotically safe with an ultraviolet critical manifold of dimension three. In particular, we discuss the universality properties of the fixed point and its s
Externí odkaz:
http://arxiv.org/abs/2304.12011
We reconsider the computation of banana integrals at different loops, by working in the configuration space, in any dimension. We show how the 2-loop banana integral can be computed directly from the configuration space representation, without the ne
Externí odkaz:
http://arxiv.org/abs/2304.00624