Relativistický seminář
Ústavu teoretické fyziky

Seminář se koná v úterý ve 13:10 v posluchárně ÚTF MFF UK
v 10. patře katedrové budovy v Tróji, V Holešovičkách 2, Praha 8

Příští semináře:

2. května 2017
Kerr-Newman black hole in the formalism of isolated horizons
Mgr. Aleš Flandera
(seminář v angličtině)
23. května 2017
Analytical study of spinning objects in general relativity
Dr. Satish Kumar Saravanan
National Institute for Subatomic Physics (Nikhef), Amsterdam
(seminář v angličtině)

Minulé semináře:

18. října 2016
An investigation of quasilocal systems in general relativity
Nezihe Uzun, PhD.
Middle East Technical University, Ankara / University of Canterbury, Christchurch
(seminář v angličtině)
25. října 2016
Quantum cosmology: Games without frontiers
Ana Alonso-Serrano, PhD.
Institute for Fundamental Physics, Spanish National Research Council, Madrid
(seminář v angličtině)
1. listopadu 2016
Scalar perturbations of K-essence models with applications to late-time cosmic acceleration
Mgr. Jan Novák, PhD.
Katedra matematiky, Fakulta informatiky a statistiky, Vysoká škola ekonomická v Praze
(seminář v angličtině)

An elementary introduction to scalar perturbations of the K-essence models. I will show how to obtain a late-time cosmic acceleration and indicate how to use the approach also for a>a0, which will be useful for modelling of the earlier stages of cosmic evolution.

8. listopadu 2016
Seminář se nekoná (děkanský den)
15. listopadu 2016
Rotational electromagnetic supperradiance
Mgr. Tomáš Ledvinka, PhD.
(seminář v angličtině)
22. listopadu 2016
Isolated horizons and the Meissner effect
Mgr. Martin Scholtz, PhD.
(seminář v angličtině)
29. listopadu 2016
Kundt spacetimes with scalar field
RNDr. Otakar Svítek, PhD.
(seminář v angličtině)
6. prosince 2016
Isolated horizons and the Meissner effect (continued from slide 22)
Mgr. Martin Scholtz, PhD.
(seminář v angličtině)
13. prosince 2016
Mass of Kerr-Newman black holes in external magnetic field
Roberto Oliveri
Université Libre de Bruxelles / International Solvay Institutes, Bruxelles
(seminář v angličtině)
7. března 2017
Dissipative effects in cosmology
Dr. Giovanni Acquaviva
(seminář v angličtině)

I review some models that take into account dissipative effects of fluids in an expanding Universe, in the context of General Relativity. The effect of dissipation on the cosmic evolution is assessed by means of different methods, such as perturbation theory and dynamical systems analysis.

14. března 2017
Generalising the coupling between spacetime and matter
Dr. Sante Carloni
Multidisciplinary Centre for Astrophysics (CENTRA), Instituto Superior Técnico (IST), University of Lisbon
(seminář v angličtině)
21. března 2017
Exact solutions with a scalar field in general relativity
Prof. Hideki Maeda
Hokkai-Gakuen University, Sapporo, Japan
(seminář v angličtině)
28. března 2017
Canonical quantization of homogeneous cosmological models
MSc. Manto Zampeli
National and Kapodistrian University of Athens
(seminář v angličtině)
4. dubna 2017
Hypervelocity stars and S-stars
Dr. Jaroslav Haas
Astronomický ústav UK
(seminář v angličtině)
11. dubna 2017
Celestial Cinematography with Large Synoptic Survey Telescope
Dr. Andrei Nomerotski
Brookhaven National Laboratory (Cosmology and Astrophysics Group), New York
(seminář v angličtině)

Investigation of Dark Energy remains one of the most compelling tasks for modern cosmology. It can be studied with several probes which are accessible through precise and deep surveys of the Universe. In the talk I will review the next generation of experiments to probe the Dark Energy with an emphasis on fully depleted silicon sensors with extended infrared sensitivity. Large Synoptic Survey Telescope which will start to take data in 2021 remains the front-runner in the sensitivity. It will precisely measure the positions and shapes of four billion galaxies along with estimates of their distances, 100,000 massive galaxy clusters, and 250,000 Type Ia Supernovae, providing an order-of-magnitude improvement relative to current experiments.

18. dubna 2017
Seminář se nekoná
25. dubna 2017
A short introduction to xAct - efficient tensor computer algebra for Mathematica
Dr. Tomáš Málek
Matematický ústav AV ČR (Oddělení algebry, geometrie a matematické fyziky)
(seminář v angličtině)

The package is availabe on the website There you can find synopsis:
xAct is a suite of free packages for tensor computer algebra in Mathematica. xAct implements state-of-the-art algorithms for fast manipulations of indices and has been modelled on the current geometric approach to General Relativity. It is highly programmable and configurable. Since its first public release in March 2004, xAct has been intensively tested and has solved a number of hard problems in GR.

Below you can find notebooks prepared for April 2017 seminar on the Institute of Theoretical Physics:

Předchozí ročníky:

Jiří Bičák                                                                                                  Oldřich Semerák

© 28. dubna 2017; Oldřich Semerák <>
© 29. dubna 2017; vygenerováno pomocí aplikace seminar, verze 2.04 (2003-09-02); správce <>