127 citations · 1.2k across the 69 of their papers we have counts for
32 papers · 1 filter
Democracy from topology
Oleg Evnin, Euihun Joung, Karapet Mkrtchyan
Chiral form fields in dimensions can be effectively described as edge modes of topological Chern-Simons theories in dimensions. At the same time, manifestly Lorentz-invar…
Three approaches to chiral form interactions
Oleg Evnin, Karapet Mkrtchyan
We briefly review and critically compare three approaches to constructing Lagrangian theories of self-interacting Abelian chiral form fields with manifest Lorentz invariance. The f…
Nonlinear (chiral) p-form electrodynamics
Zhirayr Avetisyan, Oleg Evnin, Karapet Mkrtchyan
In our previous article Phys. Rev. Lett. 127 (2021) 271601, we announced a novel 'democratic' Lagrangian formulation of general nonlinear electrodynamics in four dimensions that fe…
Democratic Lagrangians for Nonlinear Electrodynamics
Zhirayr Avetisyan, Oleg Evnin, Karapet Mkrtchyan
We construct a Lagrangian for general nonlinear electrodynamics that features electric and magnetic potentials on equal footing. In the language of this Lagrangian, discrete and co…
Time-periodicities in holographic CFTs
Ben Craps, Marine De Clerck, Oleg Evnin
Dynamics in AdS spacetimes is characterized by various time-periodicities. The most obvious of these is the time-periodic evolution of linearized fields, whose normal frequencies f…
Polynomial Duality-Symmetric Lagrangians for Free p-Forms
Sukruti Bansal, Oleg Evnin, Karapet Mkrtchyan
We explore the properties of polynomial Lagrangians for chiral -forms previously proposed by the last named author, and in particular, provide a self-contained treatment of the…