Optical Conductivity of the t-J model within Cluster Dynamical Mean Field Theory

Abstract

We study the evolution of the optical conductivity in the t-J model with temperature and doping using the Extended Dynamical Cluster Approximation. The cluster approach results in an optical mass which is doping independent near half filling. The transition to the superconducting state in the overdoped regime is characterized by a decrease in the hole kinetic energy, in contrast to the underdoped side where kinetic energy of holes increases upon superfluid condensation. In both regimes, the optical conductivity displays anomalous transfers of spectral weight over a broad frequency region.

4 pages, 3 figures

References in corpus (1)

• Sum rules and energy scales in the high-temperature superconductor YBa2Cu3O6+x

Cited by in corpus (24)

• The Hubbard model: A computational perspective
• Strongly Correlated Superconductivity: a plaquette Dynamical mean field theory study
• Pseudogap opening and formation of Fermi arcs as an orbital-selective Mott transition in momentum space
• Energetics of superconductivity in the two dimensional Hubbard model
• Quasiparticles at the verge of localization near the Mott metal-insulator transition in a two-dimensional material
• Physics of the Pseudogap in 8-site Cluster Dynamical Mean Field Theory: photoemission, Raman scattering, in-plane and c-axis conductivity
• Intermediate Coupling Model of the Cuprates
• Optical conductivity in cluster dynamical mean field theory: formalism and application to high temperature superconductors
• Kinetic-energy driven superconductivity in cuprate superconductors
• Two-particle response in Cluster Dynamical Mean-Field Theory: Formalism and application to the Raman Response of High-temperature Superconductors
• Quasiparticle Properties of the Superconducting State of the Two Dimensional Hubbard Model
• Avoided Quantum Criticality near Optimally Doped High Temperature Superconductors
• Polaronic features in the optical properties of the Holstein-t-J model
• Kinetic energy driven superconductivity, the origin of the Meissner effect, and the reductionist frontier
• Optical sum rule anomalies in the cuprates: interplay between strong correlation and electronic bandstructures
• Hidden Charge 2e Boson: Experimental Consequences for Doped Mott Insulators
• Optical and dc conductivities of cuprates: Spin-fluctuation scattering in the t-J model
• Robustness of the optical-conductivity sum rule in Bilayer Graphene
• Double-Exchange Enhanced Magnetic Blue-Shift of Mott Gaps
• Resonant Inelastic X-ray Scattering Study of Electron-Exciton Coupling in High-Tc Cuprates
• Gain of the kinetic energy of bipolarons in the t-J-Holstein model based on electron-phonon coupling
• Optical conductivity for a dimer in the Dynamic Hubbard model
• Optical Sum Rule anomalies in the High-Tc Cuprates
• Effect of the pseudogap on the infrared response in cuprate superconductors