Optical conductivity of the infinite-dimensional Hubbard model

Journal Article · Mon May 01 04:00:00 EDT 1995 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.51.11704· OSTI ID:44534

Jarrell, M ^[1]; Freericks, J K ^[2]; Pruschke, T ^[3]

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1. Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221-0011 (United States)
2. Department of Physics, Georgetown University, Washington, D.C. 20057 (United States)
3. Institut fuer Theoretische Physik, Universitaet Regensburg, 93040 Regensburg (Germany)

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 {ital T}{r_arrow}0, and are a generic property of the strongly correlated Hubbard model in all dimensions greater than one.

• OSTI ID: 44534
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 17 Vol. 51; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
FREQUENCY DEPENDENCE
HIGH-TC SUPERCONDUCTORS
HUBBARD MODEL
MANY-DIMENSIONAL CALCULATIONS
MONTE CARLO METHOD
OPTICAL PROPERTIES
QUASI PARTICLES
TEMPERATURE DEPENDENCE