86 citations · 541 across the 33 of their papers we have counts for
33 papers
Functional Renormalization Group Flows and Gauge Consistency in QED
Yoshio Echigo, Yuji Igarashi, Katsumi Itoh +2
We consider quantum electrodynamics with chiral four-Fermi interactions in the functional renormalization group approach. In gauge theories, the functional flow equation for the ef…
QED in the Exact Renormalization Group
Yuji Igarashi, Katsumi Itoh
The functional flow equation and the Quantum Master equation are consistently solved in perturbation for the chiral symmetric QED with and without four-fermi interactions. Due to t…
BRST in the Exact RG
Yuji Igarashi, Katsumi Itoh, Tim R. Morris
We show that the Quantum Master Equation and the Wilsonian renormalization group (RG) flow equation can be combined such that for the continuum effective action, quantum BRST invar…
On the wave function renormalization for Wilson actions and their 1PI actions
Y. Igarashi, K. Itoh, H. Sonoda
We clarify the relation between the wave function renormalization for Wilson actions and that for the 1PI actions in the exact renormalization group formalism. Our study depends cr…
Functional flows in QED and the modified Ward-Takahashi identity
Yuji Igarashi, Katsumi Itoh, Jan M. Pawlowski
In the functional renormalisation group approach to gauge theory, the Ward-Takahashi identity is modified due to the presence of an infrared cutoff term. It take the most accessibl…
Anomalies in the ERG Approach
Yuji Igarashi, Katsumi Itoh, Masanao Sato +1
The antifield formalism adapted in the exact renormalization group is found to be useful for describing a system with some symmetry, especially the gauge symmetry. In the formalism…