2k citations
- Centro de Astrofísica da Universidade do PortoPT50 papers
- Centre National de la Recherche ScientifiqueFR22 papers
- University of CambridgeGB19 papers
- University of MinhoPT15 papers
- Universidade Federal da ParaíbaBR13 papers
- Instituto Superior TécnicoPT11 papers
- California Institute of TechnologyUS10 papers
- European Southern ObservatoryCL9 papers
- Instituto de Astrofísica de CanariasES9 papers
- Instituto de Ciencia de Materiales de MadridES9 papers
- University of CoimbraPT9 papers
- Aarhus UniversityDK8 papers
29 papers · 1 filter
Non-Canonical Phase-Space Noncommutativity and the Kantowski-Sachs singularity for Black Holes
Catarina Bastos, Orfeu Bertolami, Nuno Costa Dias +1
We consider a cosmological model based upon a non-canonical noncommutative extension of the Heisenberg-Weyl algebra to address the thermodynamical stability and the singularity pro…
Writing CFT correlation functions as AdS scattering amplitudes
Joao Penedones
We explore the Mellin representation of conformal correlation functions recently proposed by Mack. Examples in the AdS/CFT context reinforce the analogy between Mellin amplitudes a…
The Data Replication Method for the Classification with Reject Option
Ricardo Sousa, Jaime S. Cardoso
Classification is one of the most important tasks of machine learning. Although the most well studied model is the two-class problem, in many scenarios there is the opportunity to…
Head-on collisions of unequal mass black holes in D=5 dimensions
Helvi Witek, Vitor Cardoso, Leonardo Gualtieri +3
We study head-on collisions of unequal mass black hole binaries in D=5 space-time dimensions, with mass ratios between 1:1 and 1:4. Information about gravitational radiation is ext…
Twisted Bethe equations from a twisted S-matrix
Changrim Ahn, Zoltan Bajnok, Diego Bombardelli +1
All-loop asymptotic Bethe equations for a 3-parameter deformation of AdS5/CFT4 have been proposed by Beisert and Roiban. We propose a Drinfeld twist of the AdS5/CFT4 S-matrix, toge…
Reheating via a generalized non-minimal coupling of curvature to matter
Orfeu Bertolami, Pedro Frazão, Jorge Páramos
In this work one shows that a generalized non-minimal coupling between geometry and matter is compatible with Starobinsky inflation and leads to a successful process of preheating,…