Описание
Gravitation & Cosmology: General relativity, Gravity
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Проф. Alexander Zakharov (NRC KI, Alikhanov ITEP, Moscow; JINR, Dubna)28.11.2023, 15:00Gravitation & Cosmology
At the initial stage of its development, the general theory of relativity received verification and confirmation in the limit of a weak gravitational field. However, with the development of astronomical observation technologies, predictions of GRT and in a strong gravitational field began to be discussed and confirmed, such as the profile of the X-ray iron Kα line (in the case if the emission...
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Проф. Cosimo Bambi (Center for Field Theory and Particle Physics and Department of Physics, Fudan University)28.11.2023, 15:45Gravitation & Cosmology
Black holes are the natural product of the complete gravitational collapse of matter and today we have a body of observational evidence supporting the existence of these objects in the Universe. However, general relativity predicts that at the center of black holes there are spacetime singularities, where predictability is lost and standard physics breaks down. It is widely believed that...
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Проф. Mikhail Volkov (Institute Denis Poisson, Université de Tours, France)28.11.2023, 16:50Gravitation & Cosmology
We review the recent progress in constructing hairy black holes in the Einstein-Weinberg-Salam theory. These black holes are static and axially symmetric, they carry a magnetic charge and support non-linear Yang-Mills and Higgs fields outside the event horizon. Depending on the value of the magnetic charge, their mass and size vary from Planck values up to values typical for planetary mass...
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Проф. Ilya Shapiro (Universidade Federal de Juiz de Fora, MG - Brazil)28.11.2023, 17:35Gravitation & Cosmology
Trace anomaly is one of the most relevant manifestations of quantum field theory in curved spacetime. It was shown long ago that anomaly is behind such important applications as Hawking radiation from black holes and the full version of the Starobinsky inflationary model. In many cases, such as using conformal anomaly in black hole physics or exploring quantum effects on the gravitational...
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Dr Evgeny Skvortsov (University of Mons, Belgium)28.11.2023, 18:20Gravitation & Cosmology
The recent discovery of gravitational waves calls for developing new techniques to model dynamics of compact binaries.
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One of the approaches is to apply effective field theory where a compact and rotating object is modelled by a massive
higher-spin particle interacting with the gravitational field. Kerr black holes were found to feature the most simple interaction
within this paradigm, which... -
28.11.2023, 19:05Gravitation & Cosmology
Discussion leader
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Alexander Zakharov (NRC KI – Alikhanov ITEP, Moscow; JINR, Dubna)