ar X iv : c on d - m at / 9 50 70 90 v 2 3 1 Ju l 1 99 5 Kondo Resonance in Transport Properties of Double Barrier Structure

ar X iv : c on d - m at / 9 50 70 89 v 2 3 1 Ju l 1 99 5 Is there a renormalization of the 1 D conductance in Luttinger Liquid model ?

Properties of 1D transport strongly depend on the proper choice of boundary conditions. It has been frequently stated that the Luttinger Liquid (LL) conductance is renormalized by the interaction as g e 2 h. To contest this result I develop a model of 1D LL wire with the interaction switching off at the infinities. Its solution shows that there is no renormalization of the universal conductance...

ar X iv : c on d - m at / 9 50 70 27 v 1 1 1 Ju l 1 99 5 Fundamental properties of a vortex in a d - wave superconductor

The vortex core structure in a d-wave superconductor is analyzed on the basis of the quasi-classical Eilenberger theory beyond the Ginzburg-Landau framework. The current and magnetic field distributions around an isolated vortex break circular symmetry seen in s-wave pairing and show four-fold symmetry, reflecting the internal degrees of freedom in d-wave pairing, i.e. ˆ k 2 x − ˆ k 2 y in reci...

ar X iv : c on d - m at / 9 50 80 62 v 1 3 1 Ju l 1 99 5 QUANTUM THEORY OF LARGE SYSTEMS OF NON - RELATIVISTIC MATTER

ar X iv : c on d - m at / 9 30 70 20 v 2 2 1 Ju l 1 99 3 Dissipation of the 3 He A → B Transition

A rigorous hydrodynamic theory of the A-B transition is presented. All dissi-pative processes are considered. At low interface velocities, those occurring on hy-drodynamic length scales, not considered hitherto, are most probably the dominant ones.

ar X iv : c on d - m at / 9 50 71 21 v 1 2 7 Ju l 1 99 5 Exact Critical Exponents for Pseudo - Particles in the Kondo Problem

Exact critical exponents of the Green functions for pseudo-fermions and slave bosons in the SU(N) Anderson model with U → ∞ are obtained by using the Bethe ansatz solution and boundary conformal field theory. They are evaluated exactly for mixed valence systems and Kondo systems with crystalline fields. The results agree with the prediction of Menge and Müller-Hartmann, which coincide with thos...