Tunneling in quantum wires: Exact solution of the spin isotropic case
Tunneling in quantum wires: Exact solution of the spin isotropic case
We show that the problem of impurity tunneling in a Luttinger liquid of electrons with spin is solvable in the spin isotropic case ($g_\sigma=2$, $g_\rho$ arbitrary). The resulting integrable model is similar to a two channel anisotropic Kondo model, but with the impurity spin in a "cyclic representation" of the …