[hep-th] Seminar grupe za gravitaciju, čestice i polja, 10. novembar 2023.

[dgocanin]

Zdravo svima,

najavljujem da će u petak, 10. novembra, Ana Knežević (Fizički fakultet 
Univerzitet u Beogradu) održati seminar na Institutu za fiziku.

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Naslov: Hyperbolic lattices

Apstrakt: Hyperbolic lattices connect gravitational theories, topology, 
algebraic geometry, condensed matter physics, etc. They are a new form 
of synthetic quantum matter, where particles propagate coherently on the 
sites of a regular structure that appears aperiodic from the vantage 
point of Euclidean geometry but is periodic in the case of 2D hyperbolic 
space. The lattice that we are researching is embedded in the Poincaré 
disk. We will start by comparing lattices in 2D Euclidean geometry with 
those in 2D hyperbolic space. In order to put any {p,q} (Schläfli 
symbols) lattice on a Poincaré disk, we will go back to our hyperbolic 
space and analyze its symmetry.  Our main goal is to construct discrete 
symmetry of the {p,q}-lattice from the Lié algebra (continual symmetry) 
of the hyperbolic space. In this manner, we can describe the hyperbolic 
crystal on the same footing as a crystalline lattice in flat space, 
which will furthermore allow us to systematically study band structures 
on such curved-space crystals.

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Seminar počinje u 11:15 uživo na Institutu za fiziku u sali 360 na 2. 
spratu. Osim toga, seminar se može pratiti i preko linka

https://gravityserver.ipb.ac.rs/b/mar-ae0-f4q-qww


Pozdrav,
Dragoljub