Abstract

Based on the Ward–Takahashi identity at finite chemicalpotential and Lorentz structure analysis, we generalize theBall–Chiu vertex to the case of nonzero chemical potentialand obtain the general form of the fermion-boson vertex inQED at finite chemical potential.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call