Searching for non-Fermi liquids under holographic ligh

by Prof. D. Khveschenko (U North Carolina)

Thursday 27 Jun 2013, 15:00 → 17:00 Europe/Stockholm

122:026 (Nordita (West))

By expanding the set of background geometries beyond the commonly studied ones we identify those dual gravity models that may provide holographic descriptions for some prototypical non-Fermi liquid states of strongly correlated condensed matter systems, focusing on such iconic examples as non-relativistic fermions coupled to gauge fields and Dirac fermions with the Coulomb interactions. We also explore a relationship between the bulk and boundary properties of non-interacting massive Dirac fermions living on a deformable surface and demonstrate that the edge correlations can mimic those that would normally be found in the system of one-dimensional interacting fermions. This geometrical interpretation of the boundary interaction effects offers an additional insight into the possible origin of the more sophisticated types of holographic correspondence and suggests a potential experimental environment for practical testing of the holographic principle.