40 citations · 156 across the 25 of their papers we have counts for
25 papers
Form factors of composite branch-point twist operators in the sinh-Gordon model on a multi-sheeted Riemann surface: semiclassical limit
Michael Lashkevich, Amir Nesturov
Quantum sinh-Gordon model in 1+1 dimensions is one of the simplest and best-studied massive integrable relativistic quantum field theories. We consider this theory on a multi-sheet…
Semiclassical approach to form factors in the sinh-Gordon model
Michael Lashkevich, Oleg Lisovyy, Tatiana Ushakova
Form factors in the sinh-Gordon model are studied semiclassically for small values of the parameter in the background of a radial classical solution, which descr…
The free field representation for the WZW model revisited
Michael Lashkevich
The WZW model in the free field realization that uses the system is revisited. By bosonizing the system we describe the Neveu--Schwarz and Ramond sector modules…
Lattice models, deformed Virasoro algebra and reduction equation
Michael Lashkevich, Yaroslav Pugai, Jun'ichi Shiraishi +1
We study the fused currents of the deformed Virasoro algebra (DVA). By constructing a homotopy operator we show that for special values of the parameter of the algebra fused curren…
The complex sinh-Gordon model: form factors of descendant operators and current-current perturbations
Michael Lashkevich, Yaroslav Pugai
We study quasilocal operators in the quantum complex sinh-Gordon theory in the form factor approach. The free field procedure for descendant operators is developed by introducing t…
Algebraic approach to form factors in the complex sinh-Gordon theory
Michael Lashkevich, Yaroslav Pugai
We study form factors of the quantum complex sinh-Gordon theory in the algebraic approach. In the case of exponential fields the form factors can be obtained from the known form fa…