2 papers
cond-mat.mes-hall2004
Interplay between exchange interactions and charging effects in metallic grains
Pablo San-Jose, Carlos P. Herrero, Francisco Guinea +1
We study the effect of the exchange interactions in small superconducting grains near the Coulomb blockade regime. We extend the standard description of the grain in terms of a sin…
cond-mat.stat-mech1999
Learning, competition and cooperation in simple games
M. A. R. de Cara, O. Pla, F. Guinea
The minority model was introduced to study the competition between agents with limited information. It has the remarkable feature that, as the amount of information available incre…