Seminář Ústavu teoretické fyziky

Seminář se koná každé úterý v 10:40 v posluchárně ÚTF MFF UK
v 10. patře katedrové budovy v Tróji, V Holešovičkách 2, Praha 8

Příští semináře:

26. února 2019
Crystal growth considerations and improvements for better performing magnetic shape memory alloys
Ross Harvey Colman, Ph.D.
(seminář v angličtině)

5. března 2019
Development of laser-driven X-ray sources for new generation of lasers at Eli Beamlines
Ing. J. Nejdl, Ph.D.
ELI Beamlines Czechia
(seminář v angličtině)

The development of laser-driven X-ray sources using a 20 TW titanium-sapphire laser system have been carried out at PALS research center as a preparatory phase for ELI Beamlines facility that is becoming operational. High-order harmonics from gas targets (HHG), X-ray lasers pumped by transient collisional excitation, plasma X-ray sources, or X-ray sources based on relativistic electron beams have been investigated during last few years here. In this contribution we will present new aspects of those sources as well as the status of their implementation with much more powerful laser drivers at ELI Beamlines. Results of first secondary X-ray sources that have been commissioned in 2018 (HHG Beamline, plasma X-ray source) with commercial 1 kHz laser driver will be also discussed.

12. března 2019
Attosecond Physics at the nanoscale: the ultimate frontier
Dr. Marcelo Ciappina, Ph.D.
ELI Beamlines Czechia
(seminář v angličtině)

Recently two, a priori, different branches of physics have started to merge. One is attosecond physics, that deals with, both theoretical and experimentally, the phenomena that take place when ultrashort laser pulses, with durations ranging from the attosecond to the femtosecond time scale, interact with atoms, molecules or solids. The second branch involves the manipulation and engineering of mesoscopic systems, e.g. solids, metals, dielectrics, with nanometric precision, a scale that was only reached recently. In this way, it is possible to design and build bulk matter samples which pave the way to study light-matte interaction in a completely new regime. In this seminar I’ll summarize the theoretical work we have done to tackle the underlying physics of laser-matter processes driven by spatially and temporal synthesized fields, with a main emphasis in above-threshold ionization (ATI) and high-order harmonics generation (HHG) in atoms and molecules induced by plasmonic fields [1]. At the end of the talk I’ll present a brief summary of other current and future projects.

M. F. Ciappina, et al. Attosecond Physics at the nanoscale, Rep. Prog. Phys 80, 054401 (2017)

19. března 2019
A system of linear algebraic equations for the moments of invariant measure of the dynamical system exactly describing Navier-Stokes flow in a bounded volume
RNDr. Martin Macháček, CSc
Astronomical Institute of the Czech Academy of Sciences, Ondřejov
(seminář v angličtině)

We present a rigorous method to find the invariant measure of a dynamical system exactly describing Navier-Stokes turbulence in a bounded volume. In particular we derive a system of linear algebraic equations for long-time mean values of variables such as fluid velocity at a point or higher-order moments of such velocity.

26. března 2019
Black Holes in Quadratic Gravity
Jiří Podolský, Robert Švarc
(seminář v angličtině)

We present a new explicit class of black holes in general quadratic gravity with a cosmological constant. These spherically symmetric Schwarzschild–Bach–(anti-)de Sitter geometries form a three-parameter family determined by the black-hole horizon position, the value of the Bach invariant on the horizon, and the cosmological constant. The tidal effects on free test particles and basic thermodynamic quantities are also determined.

2. dubna 2019
9. dubna 2019
16. dubna 2019
High frequency market making - čím umí zaujmout teoretického fyzika?
RNDr. V. Krejčiřík, Ph.D.
Qminers s.r.o. Praha
23. dubna 2019
Seminář se nekoná

Minulé semináře:

2. října 2018
Setkání se studenty

9. října 2018
Using positrons and positronia to study electronic structure of solids
RNDr Jan Kuriplach, CSc.
(seminář v angličtině)
16. října 2018
Historie, současnost a perspektivy řízené termonukleární fúze
prof. RNDr. P. Kubeš, CSc.
23. října 2018
Fotovoltaika dnes a zítra
RNDr. Martin Ledinský, PhD.
30. října 2018
Od statistické fyziky k analýze dat, a umělých neuronových sítí
RNDr. Lenka Zdeborová, PhD.
Institute of Theoretical Physics, CNRS a CEA Saclay
6. listopadu 2018
Děkanský den

13. listopadu 2018
Voda a led ve Sluneční soustavě
Prof. RNDr. Ondřej Čadek, CSc.
20. listopadu 2018
Nuclear quantum effects in the condensed phase through path integrals
RNDr. Ondřej Maršálek, PhD
(seminář v angličtině)
27. listopadu 2018
Super-resolution microscopy to study human cell surface receptors
RNDr. Marek Cebecauer, PhD.
4. prosince 2018
Historie rekreační matematiky
RNDr. Tereza Bártlová, PhD.

11. prosince 2018
Seminář se nekoná z důvodu nemoci
High frequency market making - čím umí zaujmout teoretického fyzika?
RNDr. V. Krejčiřík, PhD.
Qminers s.r.o. Praha
18. prosince 2018
POZOR! Mimořádně v posluchárně T1
Crystal growth considerations and improvements for better performing magnetic shape memory alloys
Ross Harvey Colman, Dr.
8. ledna 2019
Deep neural networks
Doc. RNDr. Iveta Mrázová, CSc.

Předchozí ročníky:

Jiří Horáček                                                                                                  Jiří Bičák

© 18. ledna 2019; Eva Kotalíková <>
© 21. ledna 2019; vygenerováno pomocí aplikace seminar, verze 2.04 (2003-09-02); správce <>