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Path Integral Methods in the Su-Schrieffer-Heeger Polaron Problem
Marco Zoli
I propose a path integral description of the Su-Schrieffer-Heeger Hamiltonian, both in one and two dimensions, after mapping the real space model onto the time scale. While the lat…
Path Integral of the Holstein Model with a on site potential
Marco Zoli
We derive the path integral of the semiclassical, one dimensional anharmonic Holstein model assuming that the electron motion takes place in a bath of non linear oscillators with q…
Non Local Electron-Phonon Correlations in a Dispersive Holstein Model
Marco Zoli
Due to the dispersion of optical phonons, long range electron-phonon correlations renormalize downwards the coupling strength in the Holstein model. We evaluate the size of this ef…
Particle Path Correlations in a Phonon Bath
Marco Zoli
The path integral formalism is applied to derive the full partition function of a generalized Su-Schrieffer-Heeger Hamiltonian describing a particle motion in a bath of oscillators…
Spectral Properties of the Su-Schrieffer-Heeger Model
Marco Zoli
We present a study of the one dimensional Su-Schrieffer-Heeger model Hamiltonian by a diagrammatic perturbative method in the weak electron-phonon coupling regime. Exact computatio…