Polaronic metal in lightly doped high-Tc cuprates

Abstract

We present a combined study of the angle-resolved-photoemission spectroscopy (ARPES) and quantum Monte Carlo simulations to propose a novel polaronic metallic state in underdoped cuprates. An approximation scheme is proposed to represent underdoped cuprates away from 1/2 filling, replacing the many-body Hamiltonian by that of a single polaron with effective electron-phonon interaction (EPI), that successfully explains many puzzles such as a large momentum-dependent dichotomy between nodal and anti-nodal directions, and an unconventional doping dependence of ARPES in the underdoped region.

7 pages, 2 figures

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• Directly characterizing the relative strength and momentum dependence of electron-phonon coupling using resonant inelastic x-ray scattering
• Quantum Dynamics of the Hubbard-Holstein Model in Equilibrium and Non-Equilibrium: Application to Pump-Probe Phenomena
• Ground-state properties of Dipolar Bose polarons
• Distribution of localized states from fine analysis of electron spin resonance spectra of organic semiconductors: Physical meaning and methodology
• Doping dependence of ordered phases and emergent quasiparticles in the doped Hubbard-Holstein model
• Origin of Kinks in Energy Dispersion of Strongly Correlated Matter
• Electron-phonon coupling in undoped cuprate $YB{a}_{2}C{u}_3{O}_6$ estimated from Raman and optical conductivity spectra
• Anomalous doping evolution of nodal dispersion revealed by in-situ ARPES on continuously doped cuprates
• Crossover from inelastic magnetic scattering of Cooper pairs to spin-wave dispersion produces low-energy kink in cuprates
• The origin of exciton mass in a frustrated Mott insulator Na${}_2$IrO${}_3$
• Fermi blockade of the electron-phonon interaction: why strong coupling effects may not be seen in optimally doped high temperature superconductors
• Effect of short-range correlations on spectral properties of doped Mott insulators
• Nature of extrinsic and intrinsic self-trapping of charge carriers in underdoped cuprate high-$T_{\text{c}}$ superconductors