From astrophysics to high-energy physics, from information theory to quantum gravity, black holes have acquired an ever increasing role in fundamental physics, and are now part of the terminology of many important branches of observational, theoretical and mathematical physics. This workshop aims at bringing together experts about black holes in all their aspects.
The fourth edition of the Black Holes Workshop will be held at the University of Aveiro in 18-19 December 2014.
Abstract: The Two-Higgs Doublet Model (2HDM) is one of the simples extensions of the Standard Model (SM) of particle physics. The introduction of a second Higgs doublet has interesting phenomenological consequences, namely a more complex vacuum structure than the SM's. In fact, in the 2HDM there are three possible types of vacua: the electroweak vacuum analogous to the SM one; the charge breaking vacuum, in which the electromagnetism symmetry is also broken, leaving the photon massive; and the CP breaking vacuum, for which the CP symmetry is spontanelously broken, alongside the electroweak symmetry. In this seminar we will demonstrate the impossibility of simultaneous coexistence of diferente types of mínima. We will also discuss the possible existence of tree-level metastable electroweak vacua, their importance in the light of the recente Higgs boson discovery at the LHC and the conditions which determine their existence and location of the global minimum of the model. We will finally discuss the generalization of these results for models with N Higgs doublets.
Abstract: The discovery of the Higgs boson and the subsequent award of the Nobel Prize completes the Standard Model of Particle Physics. However, the Standard Model is not a complete description of fundamental physics and leaves many questions unanswered. In this colloquium I will give an overview of the Standard Model and discuss its flaws and omissions.
Abstract: The talk will focus on two problems: Black holes formation by particle collisions in quantum physics.The approach which will be presented is based on constructing a horizon wave-function which yields the probability of finding a black hole horizon of a certain radius centered around the source.
Abstract: The gauge/gravity duality has been used to describe so-called holographic superconductors and superfluids with the help of black holes and solitons in Anti-de Sitter space-time. In this talk, I will mainly discuss holographic superconductors and superfluids away from the probe limit, i.e. taking backreaction of the space-time into account.
Mengjie Wang, Ph.D. student at Gr@v, has received a "Chinese Government Award for outstanding self-financed students abroad", granted by the Ministry of Education of China. Congratulations Mengjie!
Our group coordinated the "Numerical Relativity and High Energy Physics" IRSES network (2012-2015). Here is a list of the global network meetings organized:
