79 citations · 275 across the 12 of their papers we have counts for
12 papers · 1 filter
Derivation of the GKP-Witten relation by symmetry without Lagrangian
Sinya Aoki, Janos Balog, Kengo Shimada
We derive the GKP-Witten relation in terms of correlation functions by symmetry without referring to a Lagrangian or the large expansion. By constructing bulk operators from bo…
Virial expansion and TBA in O(N) sigma models
J. Balog, A. Hegedus
We study the free energy of the 1+1 dimensional O(N) nonlinear sigma-models for even N using the TBA equations proposed recently. We give explicit formulae for the constant solutio…
The chiral WZNW phase space as a quasi-Poisson space
J. Balog, L. Feher, L. Palla
It is explained that the chiral WZNW phase space is a quasi-Poisson space with respect to the `canonical' Lie quasi-bialgebra which is the classical limit of Drinfeld's quasi-Hopf…
A two-dimensional integrable axionic sigma-model and T-duality
J. Balog, P. Forgacs, L. Palla
An -matrix is proposed for the two dimensional O(3) -model with a dynamical -term (axion model). Exploiting an Abelian T-duality transformation connecting the axion model…
On the Chiral WZNW Phase Space, Exchange r-Matrices and Poisson-Lie Groupoids
J. Balog, L. Feher, L. Palla
This is a review of recent work on the chiral extensions of the WZNW phase space describing both the extensions based on fields with generic monodromy as well as those using Bloch…
The Chiral WZNW Phase Space and its Poisson-Lie Groupoid
J. Balog, L. Feher, L. Palla
The precise relationship between the arbitrary monodromy dependent 2-form appearing in the chiral WZNW symplectic form and the `exchange r-matrix' that governs the corresponding Po…
On Quantum T-duality in sigma models
J. Balog, P. Forgacs, N. Mohammedi +2
The problem of quantum equivalence between non-linear sigma models related by Abelian or non-Abelian T-duality is studied in perturbation theory. Using the anomalous Ward identity…
Quantum equivalence of sigma models related by non Abelian Duality Transformations
L. K. Balázs, J. Balog, P. Forgács +3
Coupling constant renormalization is investigated in 2 dimensional sigma models related by non Abelian duality transformations. In this respect it is shown that in the one loop ord…
A Scaling Hypothesis for the Spectral Densities in the O(3) Nonlinear Sigma-Model
J. Balog, M. Niedermaier
A scaling hypothesis for the n-particle spectral densities of the O(3) nonlinear sigma-model is described. It states that for large particle numbers the n-particle spectral densiti…
Quantum corrections of Abelian Duality Transformations
J. Balog, P. Forgács, Z. Horváth +1
A modification of the Abelian Duality transformations is proposed guaranteeing that a (not necessarily conformally invariant) -model be quantum equivalent (at least up to two lo…
Perturbative Quantum (In)equivalence of Dual Models in dimensions
J. Balog, P. Forgács, Z. Horváth +1
Various examples of target space duality transformations are investigated up to two loop order in perturbation theory. Our results show that when using the tree level (`naive') tra…
A new family of symmetric integrable sigma models
J. Balog, P. Forgács, Z. Horváth +1
(Minor corrections and reference added)