126 citations · 321 across the 9 of their papers we have counts for
9 papers
Logarithmic lift of the su(2)_{-1/2} model
F. Lesage, P. Mathieu, J. Rasmussen +1
This paper carries on the investigation of the non-unitary su(2)_{-1/2} WZW model. An essential tool in our first work on this topic was a free-field representation, based on a c=-…
SLE-type growth processes and the Yang-Lee singularity
Frederic Lesage, Jorgen Rasmussen
The recently introduced SLE growth processes are based on conformal maps from an open and simply-connected subset of the upper half-plane to the half-plane itself. We generalize th…
Scattering amplitudes in non-Fermi liquid systems
A. Koutouza, F. Lesage, H. Saleur
By a mix of form-factors and analyticity techniques, we determine some fundamental scattering amplitudes in non-Fermi liquid systems. These include the reflection and transmission…
The su(2)_{-1/2} WZW model and the beta-gamma system
F. Lesage, P. Mathieu, J. Rasmussen +1
The bosonic beta-gamma ghost system has long been used in formal constructions of conformal field theory. It has become important in its own right in the last few years, as a build…
Perturbation of infra-red fixed points and duality in quantum impurity problems
F. Lesage, H. Saleur
We explain in this paper how a meaningful irrelevant perturbation theory around the infra-red (strong coupling) fixed point can be carried out for integrable quantum impurity probl…
Two-Leg Ladders and Carbon Nanotubes: Exact Properties at Finite Doping
R. Konik, F. Lesage, A. W. W. Ludwig +1
Recently Lin, Balents, and Fisher have demonstrated that two-leg Hubbard ladders and armchair carbon nanotubes renormalize onto the integrable SO(8) Gross-Neveu model. We exploit t…
Tunneling in quantum wires I: Exact solution of the spin isotropic case
F. Lesage, H. Saleur, P. Simonetti
We show that the problem of impurity tunneling in a Luttinger liquid of electrons with spin is solvable in the spin isotropic case (, arbitrary). The resulting integra…
Laughlin's wave functions, Coulomb gases and expansions of the discriminant
P. Di Francesco, M. Gaudin, C. Itzykson +1
In the context of the fractional quantum Hall effect, we investigate Laughlin's celebrated ansatz for the groud state wave function at fractional filling of the lowest Landau level…
Graph Rings and Integrable Perturbations of Superconformal Theories
P. Di Francesco, F. Lesage, J. -B. Zuber
We show that the connection between certain integrable perturbations of superconformal theories and graphs found by Lerche and Warner extends to a broader class. These pertur…