30 citations · 51 across the 3 of their papers we have counts for
11 papers
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…
Quantum Group Generators in Conformal Field Theory
Jens Schnittger
These are notes of a seminar given at the 30th International Symposium on the Theory of Elementary Particles, Berlin-Buckow, August 1996. The material is derived from collaboration…
Hidden Quantum Group Symmetry in Two Dimensional Gravity
E. Cremmer, J. -L. Gervais, J. Schnittger
In a previous paper, we proposed a construction of quantum group symmetry generators for 2d gravity, where we took the chiral vertex operators of the theory to be the…
Negative Screenings in Liouville Theory
Jens Schnittger
We demonstrate how negative powers of screenings arise as a nonperturbative effect within the operator approach to Liouville theory. This explains the origin of the corresponding p…
Operator Coproduct-Realization of Quantum Group Transformations in Two Dimensional Gravity, I.
E. Cremmer, J. -L. Gervais, J. Schnittger
A simple connection between the universal matrix of (for spins $\demi$ and ) and the required form of the co-product action of the Hilbert space generators of t…