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Fermionic Atoms in Optical Superlattices

B. Paredes·C. Tejedor·J. I. Cirac
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Abstract

Fermionic atoms in an optical superlattice can realize a very peculiar Anderson lattice model in which impurities interact with each other through a discretized set of delocalized levels. We investigate the interplay between Kondo effect and magnetism under these finite-size features. We find that Kondo effect can dominate over magnetism depending on the parity of the number of particles per discretized set. We show how Kondo-induced resonances of measurable size can be observed through the atomic interference pattern.

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B. Paredes, C. Tejedor, J. I. Cirac. 2003-06-19. Fermionic Atoms in Optical Superlattices. https://doi.org/10.1103/physreva.71.063608

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