of the Institute of Theoretical Physics

- September 21, 2011
- !!! MIMOØÁDNÌ VE STØEDU (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*- Dept. of Physics and Dept. of Mathematics, Ben Gurion University of the Negev, Beer-Sheva, Israel
- October 18, 2011
- Asymptotic stability of Petrov type II twisting metrics - Part 1
*dr. W³odzimierz Natorf*- Institute of Theoretical Physics, Warsaw University / ÚTF
- October 25, 2011
- Asymptotic stability of Petrov type II twisting metrics - Part 2
*dr. W³odzimierz Natorf*- Institute of Theoretical Physics, Warsaw University / ÚTF
- November 1, 2011
- On convergence of linear perturbations of the Schwarzschild black hole
*Pavel Èížek*- ÚTF
- (seminar in Czech language)
- November 8, 2011
- Semináø se nekoná
- (seminar in Czech language)
- November 15, 2011
- Punctures and trumpets
*Anton Khirnov*- ÚTF
- (seminar in Czech language)
- November 22, 2011
- The emergence of special and doubly special relativity
*dr. Fabio Scardigli*- Academia Sinica, Institute of Physics, Taipei, Taiwan
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

- November 29, 2011
- Nambu brackets and membrane actions
*Ing. Branislav Jurèo, CSc., DSc.*- Matematický ústav UK, MFF UK
- December 6, 2011
- Conformal Null Einstein-Maxwell Fields
*Jakub Hruška*- ÚTF
- (seminar in Czech language)
- December 13, 2011
- Linear problem for the Ernst equation
*Norman Gürlebeck*- ÚTF
- December 20, 2011
- Some spacetimes with higher rank Killing-Stäckel tensors / Perimeter School International: informace o studiu
*dr. David Kubizòák*- Perimeter Institute for Theoretical Physics, Waterloo, Ontario
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.

- January 3, 2012
- Semináø se nekoná
- (seminar in Czech language)
- January 10, 2012
- Good news, bad news: type II perturbations of the Kerr metric
*W³odek Natorf*- ITP

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© February 27, 2012; Oldøich Semerák

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