Description
Diego Rubiera-Garcia
Black hole imaging as a probe for non-Kerr physics
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Prof. Rubiera-Garcia, Diego (Complutense University of Madrid)25/05/2026, 11:00
The field of black hole imaging - the observational appearance of a black hole when illuminated by its accretion disk - has quickly become one of our main tools in order to test the strong-field regime of the gravitational interaction. In this talk I will discuss the conceptual foundations of this field and discuss the features of images of several kinds of modified black holes and horizonless...
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Cisterna, Adolfo (Institute of Theoretical Physics, Charles University)26/05/2026, 11:00
Constructing exact solutions describing compact objects embedded in dynamical cosmological environments remains a major challenge in General Relativity, with most known results restricted to highly symmetric settings. In this talk, we present new exact solutions and solution-generating techniques that extend the analytical description of dynamical black holes in cosmological...
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Dr Chakraborty, Sumanta (IACS)27/05/2026, 11:00
Tidal Love numbers provide us a handle to test the nature of compact objects, as well as theories of gravity. There have been several clarifications recently, which makes our understanding of these Love numbers better. But further investigations have led to more confusion. I plan to discuss these recent developments and the confusing nature of recent literature on these issues. I will show...
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Beltrán Jiménez, Jose (University of Salamanca)28/05/2026, 11:00
The Cosmological Principle establishes the symmetries of the Universe on large scales. The inflationary paradigm and observations suggest that the universe has nearly flat spatial sections and, consequently, it has an approximate Euclidian symmetry group. Most cosmological scenarios realise this symmetry in a trival manner, although some non-trivial realisations have also been explored....
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Olmedo, Javier (Universidad de Granada)29/05/2026, 11:00
We investigate quantum entanglement in a one-dimensional cavity with an accelerating boundary, serving as a model of Hawking-like particle creation. Employing logarithmic negativity, we study correlations between selected modes and the rest of the field, and for pure states we reconstruct partner modes using the Hotta-Schützhold-Unruh relation. By analyzing vacuum, squeezed, and thermal...
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