4 research outputs found
Desarrollo de la Física y la Matemática en Chiapas, contexto, retos y perspectivas
Se presenta un bosquejo del estado del arte de la física y las matemáti-cas como campos de investigación científica con su posible aplicación tecnológica, así como una revisión del panorama socioeconómico y educativo de Chiapas en contexto con el nacional, para finalmente mostrar las líneas de investigación que se desarrollan al interior del CE-FyMAP, y cómo éstas, mediante la generación del razonamiento crítico y la formación de profesionales de alto nivel, pueden incidir en el desa-rrollo del estado
Renormalization Group Flow for Noncommutative Fermi Liquids
Some recent studies of the AdS/CFT correspondence for condensed matter
systems involve the Fermi liquid theory as a boundary field theory. Adding
B-flux to the boundary D-branes leads in a certain limit to the noncommutative
Fermi liquid, which calls for a field theory description of its critical
behavior. As a preliminary step to more general consideration, the modification
of the Landau's Fermi liquid theory due to noncommutativity of spatial
coordinates is studied in this paper. We carry out the renormalization of
interactions at tree level and one loop in a weakly coupled fermion system in
two spatial dimensions. Channels ZS, ZS' and BCS are discussed in detail. It is
shown that while the Gaussian fixed point remains unchanged, the BCS
instability is modified due to the space non-commutativity.Comment: 27 pages, 2 figures, section 3.2 and conclusions were change