Seminar of Theoretical Physics - Samuel Kováčik (19.3.2018)

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

27. 02. 2018 10.16 hod.
By: Peter Maták

Samuel Kováčik (Dublin Institute for Advanced Studies):
Triple point of a field theory on a fuzzy sphere

Abstract:
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.