6 papers
The two-flavor Schwinger model at 50: Solving Coleman's puzzles
Gabriel Cuomo, Ross Dempsey, Andrei Katsevich +4
In his 1976 paper "More about the massive Schwinger model", Coleman introduced -dimensional Quantum Electrodynamics coupled to two charged massive fermions. By applying Abelia…
-symmetric Field Theories at Finite Temperature
Oleksandr Diatlyk, Andrei Katsevich, Fedor K. Popov
We investigate the thermal properties of -symmetric scalar field theories with purely imaginary couplings. The free energy governs the asymptotic density of states, p…
Sphere free energy of scalar field theories with cubic interactions
Simone Giombi, Elizabeth Himwich, Andrei Katsevich +2
The dimensional continuation approach to calculating the free energy of -dimensional Euclidean CFT on the round sphere has been used to develop its expansion for a…
Ginzburg-Landau description of a class of non-unitary minimal models
Andrei Katsevich, Igor R. Klebanov, Zimo Sun
It has been proposed that the Ginzburg-Landau description of the non-unitary conformal minimal model is provided by the Euclidean theory of two real scalar fields with thi…
Towards a Quintic Ginzburg-Landau Description of the Minimal Model
Andrei Katsevich, Igor R. Klebanov, Zimo Sun +1
We discuss dimensional continuation of the massless scalar field theory with the interaction term. It preserves the so-called symmetry, which acts by $Ï\rig…
The spectrum of perturbed (3, 10) minimal model
Andrei Katsevich
We study RG flows between non-unitary minimal models and massive quantum theories using Truncated Conformal Space Approach (TCSA). We consider the integrable non-unitary Yang-Lee m…