2005/02/11 by Sabine Tornow, S Tornow, Ning-Hua Tong +3
Physics and Astronomy · #Acceptor #Advanced Chemical Physics Studies #Coulomb #Coupling (piping) #Degrees of freedom (physics and chemistry) #Electron #Electron transfer #Quantum and electron transport phenomena #Renormalization #Spectroscopy and Quantum Chemical Studies #Transfer (computing) #cond-mat.str-el
paper · pdf · doi:10.1209/epl/i2005-10479-1
published as Europhys. Lett. 73, 913 (2006) · 4 pages, 4 figures
arxiv created 2005/02/11 · openalex publication_date 2006/03/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate electron transfer processes in donor-acceptor systems with a coupling of the electronic degrees of freedom to a common bosonic bath. The model allows to study many-particle effects and the influence of the local Coulomb interaction U between electrons on donor and acceptor sites. Using the non-perturbative numerical renormalization group approach we find distinct differences between the electron transfer characteristics in the single- and two-particle subspaces. We calculate the critical electron-boson coupling α c as a function of U and show results for density-density correlation functions in the whole parameter space. The possibility of many-particle (bipolaronic) and Coulomb-assisted transfer is discussed.