5 papers
Leading UV Formula for Finite-Volume Vertex Operator Expectation Values in the Sine-Gordon Model from Kink NLIE
Arpad Hegedus, Apor Roth
We study the ultraviolet (UV) limit of finite-volume expectation values of vertex operators in the sine-Gordon model using the kink nonlinear integral equation (NLIE) description o…
NLIE formulations for the generalized Gibbs ensemble in the sine-Gordon model
Arpad Hegedus
In this paper we propose two sets of nonlinear integral equations (NLIE) for describing the thermodynamics in the sine-Gordon model, when higher Lorentz spin conserved charges are…
Thermodynamics in the Sine-Gordon model: the NLIE approach
Arpad Hegedus
In this paper we derive Klümper-Batchelor-Pearce-Destri-de Vega type nonlinear integral equations for describing the thermodynamics in the sine-Gordon model, when a chemical poten…
Running coupling and non-perturbative corrections for O free energy and for disk capacitor
Zoltan Bajnok, Janos Balog, Arpad Hegedus +1
We reconsider the complete solution of the linear TBA equation describing the energy density of finite density states in the nonlinear sigma models by the Wiener-Hopf method…
Integrable formulation of the OPE coefficients in the UV limit of the sine-Gordon model
Arpad Hegedus
In the repulsive regime of the sine-Gordon model, we work out a method, that enables one to formulate the UV limit of finite volume expectation values in terms of the integrable de…