Abstract
A Monte Carlo maximum-entropy calculation of the optical conductivity of the infinite-dimensional Hubbard model is presented. We show that the optical conductivity displays the anomalies found in the cuprate superconductors, including a Drude width which grows linearly with temperature, a Drude weight which grows linearly with doping, and a temperature and doping-dependent mid-IR peak. These anomalies arise as a consequence of the dynamical generation of a quasiparticle band at the Fermi energy as T→0, and are a generic property of the strongly correlated Hubbard model in all dimensions greater than one.
- Received 20 December 1994
DOI:https://doi.org/10.1103/PhysRevB.51.11704
©1995 American Physical Society