Speaker
Description
We investigate spontaneous symmetry breaking in a relativistic Yukawa theory with Luttinger fermions that exhibits self-organized criticality. Within the LPA' approximation, we numerically resolve the renormalization group flow of the full effective potential. We follow the flow from the symmetric phase, characterized by a partial fixed point, into the symmetry-broken phase. Featuring an RG-marginal scalar mass parameter, the flow displays logarithmically slow running toward symmetry breaking. We compute the mass spectrum, including the fermionic gap and the scalar excitation, quantitatively. Furthermore, in the large-$N_f$ limit, we analyze the full effective potential analytically and systematically compute corrections to this approximation.
| Affiliation | FSU Jena |
|---|---|
| Career status | PhD student |