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We present a novel {\em ab initio} approach for computing intramolecular charge and energy transfer rates based upon a projection operator scheme that parses out specific internal nuclear motions that accompany the electronic transition.…

材料科学 · 物理学 2016-12-22 Xummo Yang , Eric R. Bittner

Quantum rate theory is based on a first-principle quantum mechanical rate concept that comprises with the Planck-Einstein relationship $E = h\nu$, where $\nu = e^2/hC_q$ is a frequency associated with the quantum capacitance $C_q$ and $E =…

综合物理 · 物理学 2024-02-23 Paulo Roberto Bueno

We use a numerically exact real-time path integral Monte Carlo scheme to compute electron transfer dynamics between two redox sites within a spin-boson approach. The case of asymmetric reactions is studied in detail in the least understood…

凝聚态物理 · 物理学 2009-11-10 L. Muehlbacher , R. Egger

In the pioneering work by R. A. Marcus, the solvation effect on electron transfer (ET) processes was investigated, giving rise to the celebrated nonadiabatic ET rate formula. In this work, on the basis of the thermodynamic solvation…

化学物理 · 物理学 2021-11-19 Yao Wang , Yu Su , Rui-Xue Xu , Xiao Zheng , YiJing Yan

We study nonadiabatic electron transfer within the biased spin-boson model. We calculate the incoherent transfer rate in analytic form at all temperatures for a power law form of the spectral density of the solvent coupling. In the Ohmic…

统计力学 · 物理学 2009-10-31 G. Lang , E. Paladino , U. Weiss

We examine electron transfer between two quantum states in the presence of a dissipative environment represented as a set of independent harmonic oscillators. For this simple model, the Marcus transfer rates can be derived and we show that…

介观与纳米尺度物理 · 物理学 2013-06-11 Lev Mourokh , Seth Lloyd

We study a simple model for photoinduced electron transfer reactions for the case of many donor-acceptor pairs that are collectively and homogeneously coupled to a photon mode of a cavity. We describe both coherent and dissipative…

量子物理 · 物理学 2021-02-08 David Wellnitz , Guido Pupillo , Johannes Schachenmayer

The rate of electron transfer between a molecular species and a metal, each at a different local temperature, is examined theoretically through implementation of a bithermal (characterized by two temperatures) Marcus formalism. Expressions…

介观与纳米尺度物理 · 物理学 2019-08-02 Galen T. Craven , Abraham Nitzan

This work inspects the thermally activated transfer of solute particles across the interface between two interstitial solid solution phases that equilibrate internally by fast diffusion on conserved arrays of sites. When each phase is…

材料科学 · 物理学 2026-01-30 Jörg Weissmüller

We use the quantum threshold laws combined with a classical capture model to provide an analytical estimate of the chemical quenching cross sections and rate coefficients of two colliding particles at ultralow temperatures. We apply this…

原子物理 · 物理学 2010-02-05 Goulven Quéméner , John L. Bohn

Fermi's golden rule describes the leading-order behaviour of the reaction rate as a function of the diabatic coupling. Its asymptotic $(\hbar \rightarrow 0)$ limit is the semiclassical golden-rule instanton rate theory, which rigorously…

化学物理 · 物理学 2022-05-18 George Trenins , Jeremy O. Richardson

Electron transfer (ET) at molecule-metal or molecule-semiconductor interfaces is a fundamental reaction that underlies all electro-chemical and molecular electronic processes as well as substrate-mediated surface photochemistry. In this…

化学物理 · 物理学 2023-06-21 Yu Wang , Wenjie Dou

We propose an analytical model based on diffusion-reaction equation approach for electrochemical electron transfer reaction, where the rate is limited by the electron transfer process. The electron transfer from an ion in solution to the…

其他凝聚态物理 · 物理学 2015-05-29 Aniruddha Chakraborty

The Wolynes theory of electronically nonadiabatic reaction rates [P. G. Wolynes, J. Chem. Phys. 87, 6559 (1987)] is based on a saddle point approximation to the time integral of a reactive flux autocorrelation function in the nonadiabatic…

化学物理 · 物理学 2017-10-31 Joseph E. Lawrence , David E. Manolopoulos

In this article, we present a unified reciprocal quantum electrodynamics (QED) formulation of quantum light-matter interaction. For electron-light interactions, we bridge the underlying theories of Photon-Induced Near-field Electron…

量子物理 · 物理学 2019-04-12 Yiming Pan , Avraham Gover

The Marcus theory expression for the rate of non-adiabatic electron transfer is widely used across a range of physical conditions. Although Marcus theory defines the reorganization energy classically, here we show that the reorganization…

量子物理 · 物理学 2026-04-02 Ethan Abraham , Junghyun Yoon , Troy Van Voorhis , Martin Z. Bazant

We investigate the effects of collective modes on the temperature relaxation rates in fully coupled electron-ion systems. Firstly, the well-understood limit of weakly coupled plasmas is considered and the coupled mode formula within the…

等离子体物理 · 物理学 2015-05-13 J. Vorberger , D. O. Gericke

Intermolecular electron transfer reaction often occurs over long range distances (i.e. up to several tens of angstroms) and plays a key role in various physical, chemical and biological processes. In these reactions the rate constant of…

化学物理 · 物理学 2017-05-08 Ashish Kumar , Diwaker , Anirudhha Chakraborty

In the present work, a theoretical study of electron-phonon (electron-ion) coupling rates in semiconductors driven out of equilibrium is performed. Transient change of optical coefficients reflects the band gap shrinkage in covalently…

材料科学 · 物理学 2017-02-22 Nikita Medvedev , Zheng Li , Victor Tkachenko , Beata Ziaja

We investigate finite temperature corrections to the Landauer formula due to electron-electron interaction within the quantum point contact. When the Fermi level is close to the barrier height, the interaction is strongly enhanced due to…

介观与纳米尺度物理 · 物理学 2007-05-23 C. Sloggett , A. I. Milstein , O. P. Sushkov