3 papers
hep-th2025
Self-organized criticality in a relativistic Yukawa theory with Luttinger fermions
Holger Gies, Marta Picciau
We propose and investigate a Yukawa model featuring a dynamical scalar field coupled to relativistic Luttinger fermions. Using the functional renormalization group (RG) as well as…
hep-ph2024
Phase transition analogs in laser collisions with a dark-field setup
Holger Gies, Felix Karbstein, Lars Maiwald
Laser pulse collisions are a promising tool for the investigation of light-by-light scattering phenomena induced by quantum vacuum fluctuations. Using the numerical code based on t…
hep-th2024
Mean-field theory for self-interacting relativistic Luttinger fermions
Holger Gies, Marta Picciau
We investigate a class of quantum field theories with relativistic Luttinger fermions and local self-interaction in scalar channels. For an understanding of possible low-energy pha…