Isotope effect on the electron band structure of doped insulators

Abstract

Applying a continuous-time quantum Monte-Carlo algorithm we calculate the exact coherent band dispersion and the density of states of a two dimensional lattice polaron in the region of parameters where any approximation might fail. We find an isotope effect on the band structure, which is different for different wave-vectors of the Brillouin zone and depends on the radius and strength of the electron-phonon interaction. An isotope effect on the electron spectral function is also discussed.

4 pages, 3 figures

References in corpus (4)

• An unusual isotope effect in a high-transition-temperature superconductor
• Direct observation of the oxygen isotope effect on the in-plane magnetic field penetration depth in optimally doped YBa${}_2$Cu${}_3$O${}_{7-\delta }$
• Optical conductivity of the Frohlich polaron
• Identifying the Background Signal in ARPES of High Temperature Superconductors

Cited by in corpus (13)

• Froehlich Polaron and Bipolaron: Recent Developments
• Effect of electron-phonon interaction range on lattice polaron dynamics: a continuous-time quantum Monte Carlo study
• Effects of lattice geometry and interaction range on polaron dynamics
• Polaronic and nonadiabatic phase diagram from anomalous isotope effects
• Numerical study of the isotope effect in underdoped high-temperature superconductors: Calculation of the angle-resolved photoemission spectra
• Many-Polaron Effects in the Holstein Model
• Spectral properties and isotope effect in strongly interacting systems: Mott-Hubbard insulator and polaronic semiconductor
• Isotope effects in the Hubbard-Holstein model within dynamical mean-field theory
• Large isotope effect on $T_c$ in cuprates despite of a small electron-phonon coupling
• High temperature superconductivity due to the long-range electron-phonon interaction, application to isotope effects, thermomagnetic transport and nanoscale heterogeneity in cuprates
• Holstein polaron in two and three dimensions by quantum Monte Carlo
• Isotope effect on the superconducting critical temperature of cuprates in the presence of charge order
• Isotopic shift in angle-resolved photoemission spectra of Bi2Sr2CaCu2O8 due to quadratic electron-phonon coupling