177 citations · 705 across the 23 of their papers we have counts for
4 papers · 1 filter
RG analysis at higher orders in perturbative QFTs in CMP
Nikolai Zerf
In this contribution we report on the perturbative determination of -functions and anomalous dimensions for the chiral Ising, chiral XY and chiral Heisenberg Gross-Neveu-Yukawa…
Four-loop critical exponents for the Gross-Neveu-Yukawa models
Nikolai Zerf, Luminita N. Mihaila, Peter Marquard +2
We study the chiral Ising, the chiral XY and the chiral Heisenberg models at four-loop order with the perturbative renormalization group in dimensions and compute critical ex…
Three-loop quark form factor at high energy: the leading mass corrections
Tao Liu, Alexander A. Penin, Nikolai Zerf
We compute the leading mass corrections to the high-energy behavior of the massive quark vector form factor to three loops in QCD in the double-logarithmic approximation.
Gross-Neveu-Yukawa model at three loops and Ising critical behavior of Dirac systems
Luminita N. Mihaila, Nikolai Zerf, Bernhard Ihrig +2
Dirac and Weyl fermions appear as quasi-particle excitations in many different condensed-matter systems. They display various quantum transitions which represent unconventional uni…