21 citations · 86 across the 8 of their papers we have counts for
8 papers
Recursion method for quench dynamics: strengths and limitations
Ilya Shirokov, Viacheslav Khrushchev, Filipp Uskov +3
The recursion method, which solves coupled Heisenberg equations in a Lanczos operator basis, has recently emerged as a powerful nonperturbative tool for computing dynamical correla…
The four-loop -function from vacuum supergraphs and the NSVZ relation for SQED regularized by higher derivatives
Ilya Shirokov, Valentina Shirokova
In SQED with flavors regularized by higher derivatives we obtain the four-loop beta function using a method based on calculating vacuum supergraphs. For this pur…
Computer algebra calculations in supersymmetric electrodynamics
Ilya Shirokov
We propose a new symbolic algorithm and a C++ program for generating and calculating supersymmetric Feynman diagrams for supersymmetric electrodynamics regularized by…
The three-loop anomalous dimension and the four-loop -function for SQED regularized by higher derivatives
Ilya Shirokov, Konstantin Stepanyantz
For SQED with flavors regularized by higher derivatives in the general -gauge we calculate the three-loop anomalous dimension of the matter superfields define…
Finiteness of the triple gauge-ghost vertices in supersymmetric gauge theories: the two-loop verification
Mikhail Kuzmichev, Nikolai Meshcheriakov, Sergey Novgorodtsev +3
By an explicit calculation we demonstrate that the triple gauge-ghost vertices in a general renormalizable supersymmetric gauge theory are UV finite in the two-loop ap…
Finiteness of the two-loop matter contribution to the triple gauge-ghost vertices in supersymmetric gauge theories regularized by higher derivatives
Mikhail Kuzmichev, Nikolai Meshcheriakov, Sergey Novgorodtsev +2
For a general renormalizable supersymmetric gauge theory with a simple gauge group we verify the ultraviolet (UV) finiteness of the two-loop matter contribution to the…
Three-loop verification of a new algorithm for the calculation of a -function in supersymmetric theories regularized by higher derivatives for the case of SQED
S. S. Aleshin, I. S. Durandina, D. S. Kolupaev +9
We verify a recently proposed method for obtaining a -function of supersymmetric gauge theories regularized by higher derivatives by an explicit calculation. Accord…
Three-loop contribution of the Faddeev-Popov ghosts to the -function of supersymmetric gauge theories and the NSVZ relation
M. D. Kuzmichev, N. P. Meshcheriakov, S. V. Novgorodtsev +2
We find the three-loop contribution to the -function of supersymmetric gauge theories regularized by higher covariant derivatives produced by the supergraphs contai…