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Boundary Critical Phenomena in SU(3) "Spin" Chains
Ian Affleck, Masaki Oshikawa, Hubert Saleur
SU(3)-invariant "spin" chains with a single impurity, such as a modified exchange coupling on one link, are analyzed using boundary conformal field theory techniques. These chains…
Interplay of the Scaling Limit and the Renormalization Group: Implications for Symmetry Restoration
Robert M. Konik, Hubert Saleur, Andreas W. W. Ludwig
Symmetry restoration is usually understood as a renormalization group induced phenomenon. In this context, the issue of whether one-loop RG equations can be trusted in predicting s…
Quantum brownian motion on a triangular lattice and c=2 boundary conformal field theory
Ian Affleck, Masaki Oshikawa, Hubert Saleur
We study a single particle diffusing on a triangular lattice and interacting with a heat bath, using boundary conformal field theory (CFT) and exact integrability techniques. We de…
Lectures on Non Perturbative Field Theory and Quantum Impurity Problems: Part II
H. Saleur
These are notes of lectures given at The NATO Advanced Study Institute/EC Summer School on ``New Theoretical Approaches to Strongly Correlated Systems'' (Newton Institute, April 20…
Thermodynamics of the Complex su(3) Toda Theory
H. Saleur, B. Wehefritz-Kaufmann
We present the first computation of the thermodynamic properties of the complex su(3) Toda theory. This is possible thanks to a new string hypothesis, which involves bound states t…
Current bistability and hysteresis in strongly correlated quantum wires
R. Egger, H. Grabert, A. Koutouza +2
Nonequilibrium transport properties are determined exactly for an adiabatically connected single channel quantum wire containing one impurity. Employing the Luttinger liquid model…