6 papers · 1 filter
Boundary flows in minimal models
F. Lesage, H. Saleur, P. Simonetti
We discuss in this paper the behaviour of minimal models of conformal theory perturbed by the operator at the boundary. Using the RSOS restriction of the sine-Gordon model…
Boundary conditions changing operators in non conformal theories
F. Lesage, H. Saleur
Boundary conditions changing operators have played an important role in conformal field theory. Here, we study their equivalent in the case where a mass scale is introduced, in an…
The Maxwell-Bloch Theory in Quantum Optics and the Kondo Model
A. Leclair, F. Lesage, S. Lukyanov +1
In this letter, the problem of radiation in a fiber geometry interacting with a two level atom is mapped onto the anisotropic Kondo model. Thermodynamical and dynamical properties…
Single particle Green's function in the Calogero-Sutherland model for rational couplings
D. Serban, F. Lesage, V. Pasquier
We derive an exact expression for the single particle Green function in the Calogero-Sutherland model for all rational values of the coupling . The calculation is based on Jack…
Solving 1d plasmas and 2d boundary problems using Jack polynomials and functional relations
P. Fendley, F. Lesage, H. Saleur
The general one-dimensional ``log-sine'' gas is defined by restricting the positive and negative charges of a two-dimensional Coulomb gas to live on a circle. Depending on charge c…
Dynamical correlation functions in the Calogero-Sutherland model
F. Lesage, V. Pasquier, D. Serban
We compute the dynamical Green function and density-density correlation in the Calogero-Sutherland model for all integer values of the coupling constant. An interpretation of the i…