Zobrazeno 1 - 10
of 465
pro vyhledávání: '"Bielli, P"'
Autor:
Anchordoqui, Luis A., Antoniadis, Ignatios, Bielli, Daniele, Chatrabhuti, Auttakit, Isono, Hiroshi
The proposal of a rapid sign-switching cosmological constant in the late universe, mirroring a transition from anti-de Sitter (AdS) to de Sitter (dS) space, has significantly improved the fit to observational data and provides a compelling framework
Externí odkaz:
http://arxiv.org/abs/2410.18649
We generalize the auxiliary field deformations of the principal chiral model (PCM) introduced in arXiv:2405.05899 and arXiv:2407.16338 to sigma models whose target manifolds are symmetric or semi-symmetric spaces, including a Wess-Zumino term in the
Externí odkaz:
http://arxiv.org/abs/2409.05704
We construct the boundary algebraic Bethe ansatz for the $AdS_3 \times S^3 \times T^4$ integrable reflection problem restricted to the massless sector. We derive the double-row monodromy and find the appropriate formulation of the so-called {\it dual
Externí odkaz:
http://arxiv.org/abs/2408.15674
We combine the Yang-Baxter (YB) and bi-Yang-Baxter (bi-YB) deformations with higher-spin auxiliary field deformations to construct multi-parameter families of integrable deformations of the principal chiral model on a Lie group $G$ with semi-simple L
Externí odkaz:
http://arxiv.org/abs/2408.09714
We construct a new infinite family of integrable deformations of the principal chiral model (PCM) parameterized by an interaction function of several variables, which extends the formalism of arXiv:2405.05899, and includes deformations of the PCM by
Externí odkaz:
http://arxiv.org/abs/2407.16338
We initiate the study of the interplay between T-duality and classical stress tensor deformations in two-dimensional sigma models. We first show that a general Abelian T-duality commutes with the $T \overline{T}$ deformation, which can be engineered
Externí odkaz:
http://arxiv.org/abs/2407.11636
We study the problem of false vacuum decay in arbitrary dimensions, in the presence of gravity, and compute the transition probability within the thin-wall approximation, generalising the results of Coleman and de Luccia. In the particular case of on
Externí odkaz:
http://arxiv.org/abs/2405.16920
We study the geometries obtained by performing super non-Abelian T-duality of the Principal Chiral Model on OSp$(1|2)$. While the initial model represents an appropriate 3D supergravity background, interpretable as the superspace version of AdS$_{3}$
Externí odkaz:
http://arxiv.org/abs/2404.10041
Autor:
Bielli, Daniele, Gautam, Vaibhav, Moustakis, Vasileios, Prinsloo, Andrea, Torrielli, Alessandro
We study the boundary integrability problem of the massless sector of $AdS_3 \times S^3 \times T^4 $ string theory. Exploiting the difference-form of the massless scattering theory, we find a very simple and exhaustive list of reflection matrices for
Externí odkaz:
http://arxiv.org/abs/2403.18594
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-29 (2024)
Abstract We study the problem of false vacuum decay in arbitrary dimensions, in the presence of gravity, and compute the transition probability within the thin-wall approximation, generalising the results of Coleman and de Luccia. In the particular c
Externí odkaz:
https://doaj.org/article/d4e7ebefac654664809a7993fd9a136f
