English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Previously, we introduced a method for systematically correcting aquasiparticle green's function via a power series expansion. Here we present anODE based formalisms of power series correction that goes beyond the cumulantapproximation and implement it to 1D Holstein chain for a wide range ofcoupling strengths in a scalable and inexpensive fashion at both zero andfinite temperature. We show that this first differential formalism of the powerseries is both qualitatively and quantitatively in excellent agreement withexact diagonalization results on 1D Holstein chain with dispersive bosons for alarge range of electron-boson coupling strength. We investigate carrier massgrowth rate and carrier energy displacement across a wide range of couplingstrength. Finally, we present a heuristic argument which predicts most of therich satellite structure without explicit calculation.

Going Beyond the Cumulant Approximation II:Power Series Correction to Single Particle Green's Function in 1D Holstein Chain