Relativistický seminář
Ústavu teoretické fyziky

podzim 2011


Proběhlé semináře:

21. září 2011
!!! MIMOŘÁDNĚ VE STŘEDU (od 13:10) !!!!
Dynamical volume element of space-time manifold and its outputs: the cosmological constant problem, the fifth force problem; etc.
Dr. Alexander Kaganovich
Department of Physics and Department of Mathematics, Ben Gurion University of the Negev, Beer-Sheva, Israel
(seminář v angličtině)
18. října 2011
Asymptotic stability of Petrov type II twisting metrics - Part 1
dr. Włodzimierz Natorf
Institute of Theoretical Physics, Warsaw University / ÚTF
(seminář v angličtině)
25. října 2011
Asymptotic stability of Petrov type II twisting metrics - Part 2
dr. Włodzimierz Natorf
Institute of Theoretical Physics, Warsaw University / ÚTF
(seminář v angličtině)
1. listopadu 2011
On convergence of linear perturbations of the Schwarzschild black hole
Pavel Čížek
ÚTF
8. listopadu 2011
Seminář se nekoná
15. listopadu 2011
Punctures and trumpets
Anton Khirnov
ÚTF
22. listopadu 2011
The emergence of special and doubly special relativity
dr. Fabio Scardigli
Academia Sinica, Institute of Physics, Taipei, Taiwan
(seminář v angličtině)

In this talk we show how a classical Brownian motion on a short scale can originate a relativistic motion on scales larger than particle's Compton wavelength. Viewed in this way, special relativity is not a primitive concept, but rather it statistically emerges when a coarse graining average over distances of order, or longer than the Compton wavelength is taken. We also present the modifications necessary to accommodate in our scheme the doubly special relativistic dynamics. In this way, an unsuspected, common statistical origin of the two frameworks is brought to light for the first time. Salient issues such as generalized commutation relations, and Hausdorff dimensions of path-integral trajectories, are also discussed. Reference paper: arXiv: 1105.3930

29. listopadu 2011
Nambu brackets and membrane actions
Ing. Branislav Jurčo, CSc., DSc.
Matematický ústav UK, MFF UK
(seminář v angličtině)
6. prosince 2011
Conformal Null Einstein-Maxwell Fields
Jakub Hruška
ÚTF
13. prosince 2011
Linear problem for the Ernst equation
Norman Gürlebeck
ÚTF
(seminář v angličtině)
20. prosince 2011
Some spacetimes with higher rank Killing-Stäckel tensors / Perimeter School International: informace o studiu
dr. David Kubizňák
Perimeter Institute for Theoretical Physics, Waterloo, Ontario
(seminář v angličtině)

By applying the lightlike Eisenhart lift to several known examples of low-dimensional integrable systems admitting integrals of motion of higher-order in momenta, we obtain four- and higher-dimensional Lorentzian spacetimes with irreducible higher-rank Killing tensors. Such metrics, we believe, are first examples of spacetimes admitting higher-rank Killing tensors. Included in our examples is a four-dimensional supersymmetric pp-wave spacetime, whose geodesic flow is superintegrable. We also discuss the extension to the quantum regime.

3. ledna 2012
Seminář se nekoná
10. ledna 2012
Good news, bad news: type II perturbations of the Kerr metric
Włodek Natorf
ÚTF
(seminář v angličtině)

Další ročníky:


© 27. února 2012; Oldřich Semerák <semerak@mbox.troja.mff.cuni.cz>
© 6. října 2016; vygenerováno pomocí aplikace seminar, verze 2.04 (2003-09-02); správce <Pavel.Krtous@mff.cuni.cz>