Fakulta matematiky, fyziky
a informatiky
Univerzity Komenského v Bratislave

Seminár z teoretickej fyziky - Samuel Kováčik (19.3.2018)

v pondelok 19.3.2018 o 14:00 hod. v miestnosti F2/125


27. 02. 2018 10.12 hod.
Od: Peter Maták

Prednášajúci: Samuel Kováčik (Dublin Institute for Advanced Studies)

Názov: Triple point of a field theory on a fuzzy sphere

Termín: 19.3.2018, 14:00 hod., F2/125


Abstrakt:
Fuzzy sphere is probably the simplest example of a noncommutative space. We will use this opportunity to introduce this subject in a very pedagogical way (this may be considered as the central part of the talk). I will then outline our recent research – a numerical study of a (scalar, quartic) field theory on a fuzzy sphere.
The main result was a confirmation of previous (approximate) analytical studies – the theory does not approach its commutative counterpart in the commutative limit, which is obviously a problem. A proposal for a solution will be described briefly.