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Strong correlations and electron-phonon coupling in high-temperature superconductors: a quantum Monte Carlo study

Morgenstern, Ingo ; Frick, M. ; Von der Linden, Wolfgang



Abstract

We present quantum simulation studies for a system of strongly correlated fermions coupled to local anharmonic phonons. The Monte Carlo calculations are based on a generalized version of the Projector Quantum Monte Carlo Method allowing a simultaneous treatment of fermions and dynamical phonons. The numerical simulations yield exact results in the electron-phonon parameter regime relevant for ...

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