Optical conductivity with holographic lattices


Type
Article
Change log
Authors
Horowitz, GT 
Santos, JE 
Abstract

We add a gravitational background lattice to the simplest holographic model of matter at finite density and calculate the optical conductivity. With the lattice, the zero frequency delta function found in previous calculations (resulting from translation invariance) is broadened and the DC conductivity is finite. The optical conductivity exhibits a Drude peak with a cross-over to power-law behavior at higher frequencies. Surprisingly, these results bear a strong resemblance to the properties of some of the cuprates.

Description
Keywords
AdS-CFT Correspondence, Holography and condensed matter physics (AdS/CMT)
Journal Title
Journal of High Energy Physics
Conference Name
Journal ISSN
1126-6708
1029-8479
Volume Title
2012
Publisher
Springer Science and Business Media LLC
Sponsorship
Science and Technology Facilities Council (ST/G000581/1)
Science and Technology Facilities Council (ST/J000434/1)