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32 papers · 1 filter
Microscopic Theory of Josephson Mesoscopic Constrictions
A. Martin-Rodero, F. J. Garcia-Vidal, A. Levy-Yeyati
We present a microscopic theory for the d.c. Josephson effect in model mesoscopic constrictions. Our method is based on a non-equilibrium Green function formalism which allows for…
Aspects of the electroweak phase transition in the Minimal Supersymmetric Standard Model
A. Brignole, J. R. Espinosa, M. Quiros +1
We study the finite-temperature effective potential of the Minimal Supersymmetric Standard Model in the full (mA, tan(beta)) parameter space. As for the features of the electroweak…
From Perturbation Theory to Confinement: How the String Tension is built up
Margarita Garcia Perez, Antonio Gonzalez-Arroyo, Pablo Martinez
We study the spatial volume dependence of electric flux energies for SU(2) Yang-Mills fields on the torus with twisted boundary conditions. The results approach smoothly the rotati…
D- and B-Meson Semi-Leptonic Decays
APE Collaboration
Recent results for semi-leptonic decays of and mesons at , using the Wilson action, and at , using the Clover action, are reported.
Crossover from the Josephson effect to bulk superconducting flow
Fernando Sols, Jaime Ferrer
The crossover between ideal Josephson behavior and uniform superconducting flow is studied by solving exactly the Ginzburg-Landau equation for a one-dimensional superconductor in t…
On the top of the energy barrier. Margarita Garcia Perez
Antonio Gonzalez-Arroyo, Jeroen Snippe, Pierre van Baal
We present results related to the search of SU(2) instantons on a geometry obtained using over-improved cooling with fixed boundary conditions. We also introd…