4 papers
Confinement of hydrodynamic modes on a free surface and their quantum analogs
M. Torres, J. P. Adrados, P. Cobo +7
A subtle procedure to confine hydrodynamic modes on the free surface of a fluid is presented here. The experiment consists of a square vessel with an immersed square central well v…
Effect of a Variable-Spin Quantum Dot on a Wire Conductance
Maria A. Davidovich, E. V. Anda, C. A. Busser +1
A numerically exact calculation of the T=0 transport properties of a quantum wire interacting with a lateral two-level quantum dot is presented. The wire conductance is calculated…
Transport in a mesoscopic ring with a quantum dot: from the Coulomb blockade regime to the Kondo effect
Valeria Ferrari, Guillermo Chiappe, Enrique Anda
The system described in this work consists of a quantum dot inserted in a mesoscopic ring threaded by a magnetic flux. Our aim is to present a complete description for this device…
The wavefunction renormalization constant for the one- and two- band Hubbard hamiltonians in two dimensions
E. Louis, G. Chiappe, J. Galan +2
The wavefunction renormalization in the Hubbard model is studied, by using well tested mean field tecniques. The 'orthogonality catastrophe' is shown to exist, even in 2D, for dopi…