Speaker
Mr
Dmitrii Trunin
(Moscow Institute of Physics and Technology)
Description
We consider 1+1 Yukawa model in the strong background field (namely, linearly growing scalar field). We derive exact harmonics, calculate the fermionic current and find that it grows logarithmically. We reproduce this result by integrating out the fermion degrees of freedom in the effective action. Finally, we calculate loop corrections to the scalar and fermion propagators and observe that they receive growing with time infrared contributions. This indicates the breakdown of the perturbation theory.
Primary author
Mr
Dmitrii Trunin
(Moscow Institute of Physics and Technology)
Co-author
Prof.
Emil Akhmedov
(ITEP)
