Speaker
Ilaria Costa
Date/Time
Date(s) - 28/11/2022
11:00 - 12:00
Location
IRIS Building, Room 1.221
Ilaria Costa will present a talk on the Lattice Non-Linear Sigma Model on the Supersphere:
The 2D O(N) non-linear sigma models are exactly solvable theories and, on the lattice, they have many applications from statistical mechanics to QCD toy models. In this talk, I will consider a particular generalization of the O(N) model, i.e. the non-linear sigma model on the supersphere. The global symmetry group of this model – the OSp(N+2M|2M) supergroup – mixes bosonic and fermionic degrees of freedom, hence the sigma model can be thought of as a toy model for string worldsheet theories with target space supersymmetry. I will describe the discretization on the lattice of the OSP(3|2) case and the relation between this model and its non-supersymmetric equivalent, the Ising model. I will also present our strategy for numerical simulations and some numerical results.
As usual, if you want to join from outside the RTG, please email me firstname.lastname@physik.hu-berlin.de
See you there,
Gabriel Bliard