206 citations · 841 across the 19 of their papers we have counts for
19 papers
Peculiarities of beta functions in sigma models
Oleksandr Gamayun, Andrei Losev, Mikhail Shifman
In this paper we consider perturbation theory in generic two-dimensional sigma models in the so-called first-order formalism, using the coordinate regularization approach. Our goal…
New observables in topological instantonic field theories
Andrei Losev, Sergey Slizovskiy
Instantonic theories are quantum field theories where all correlators are determined by integrals over the finite-dimensional space (space of generalized instantons). We consider n…
First Order String Theory and the Kodaira-Spencer Equations. I
O. Gamayun, A. S. Losev, A. Marshakov
We consider first-order bosonic string theory, perturbed by the primary operator, corresponding to deformation of the target-space complex structure. We compute the effective actio…
Materializing Superghosts
Victor Alexandrov, Dmitry Krotov, Andrei Losev +1
We construct the off-shell BV realization of N=1, d=10 SYM with 7 auxillary fields. This becomes possible due to materialized ghost phenomenon. Namely, supersymmetry ghosts are coo…
Quantum Field Theory as Effective BV Theory from Chern-Simons
Dmitry Krotov, Andrei Losev, A. Gorodentsev
The general procedure for obtaining explicit expressions for all cohomologies of N.Berkovits's operator is suggested. It is demonstrated that calculation of BV integral for the cla…
On First Order Formalism in String Theory
Andrei S. Losev, Andrei Marshakov, Anton M. Zeitlin
We consider the first order formalism in string theory, providing a new off-shell description of the nontrivial backgrounds around an "infinite metric". The OPE of the vertex opera…