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 Holešovičách 2, Praha 8

16. dubna 2024
Geometry-induced Phase Transitions
prof. Mgr. Alexandr Malijevský, Ph.D., DSc.
Department of Physical Chemistry, University of Chemistry and Technology, Prague
(seminář v angličtině)

In this talk I describe some aspects of the modern theory of surface phase transitions. We begin with the simplest scenario of a fluid adsorbed at a planar wall, and the associated theory of wetting transitions, before turning attention to more complex geometries and the new phase transitions and hidden symmetries which emerge.

23. dubna 2024
Chiral Phonons as Dark Matter Detectors
Ing. Marek Matas, Ph.D.
ETH Zürich, Switzerland
(seminář v angličtině)

Dark matter has proven to be one of the most elusive mysteries of modern-day physics. The fact that we have, as of yet, not been able to detect its interaction with standard model particles points to two most straightforward explanations. Either its interactions are too rare or too feeble for the technological limitations of our detectors. Phonons are some of the softest excitations one can produce in condensed matter systems. However, their readout has proven to be a very challenging task. In this seminar, I will talk about the possibility of employing chiral phonons together with surface-based magnetometric readout as dark matter detectors of tomorrow with unprecedented energy sensitivity.

Jiří Horáček                                                                                                  David Heyrovský