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Related papers: Electronic energy transfer: vibrational control an…

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A remote energy transfer pathway from electronic to vibrational degrees of freedom is identified inside an infrared optical cavity under vibrational strong coupling conditions. This mechanism relies on the dynamical Casimir effect, whereby…

Quantum Physics · Physics 2024-03-19 Tao E. Li

We develop a detailed theoretical model of photo-induced proton-coupled electron transfer (PPCET) processes, which are at the basis of solar energy harvesting in biological systems and photovoltaic materials. Our model enables to analyze…

Chemical Physics · Physics 2021-04-13 Jiaji Zhang , Raffaele Borrelli , Yoshitaka Tanimura

The complex amplitudes of the electronic wavefunctions on different sites are used as Kramers variables for describing Electron Transfer. The strong coupling of the electronic charge to the many nuclei, ions, dipoles, etc, of the…

Condensed Matter · Physics 2009-11-07 S. Aubry , G. Kopidakis

Charge transfer is a fundamental process that underlies a multitude of phenomena in chemistry and biology. Recent advances in observing and manipulating charge and heat transport at the nanoscale, and recently developed techniques for…

Mesoscale and Nanoscale Physics · Physics 2016-07-26 Galen T. Craven , Abraham Nitzan

The soft character of organic materials leads to strong coupling between molecular nuclear and electronic dynamics. This coupling opens the way to control charge transport in organic electronic devices by inducing molecular vibrational…

We investigate exciton transport through one-dimensional molecular aggregates interacting strongly with a cavity mode. Unlike several prior theoretical studies treating the monomers as simple two-level systems, exciton-vibration coupling is…

Mesoscale and Nanoscale Physics · Physics 2019-03-14 Jingyu Liu , Qing Zhao , Ning Wu

We show that the efficient excitation energy transfer in the Fenna-Matthews-Olson molecular aggregate under realistic physiological conditions is fueled by underdamped vibrations of the embedding proteins. For this, we present numerically…

Chemical Physics · Physics 2013-11-26 P. Nalbach , C. A. Mujica-Martinez , M. Thorwart

Hybrid interfaces formed by inorganic semiconductors and organic molecules are intriguing materials for opto-electronics. Interfacial charge transfer is primarily responsible for their peculiar electronic structure and optical response.…

Materials Science · Physics 2020-04-15 Matheus Jacobs , Jannis Krumland , Ana M. Valencia , Haiyuan Wang , Mariana Rossi , Caterina Cocchi

Vibrational-electronic (vibronic) resonance and its role in energy and charge transfer has been experimentally and theoretically investigated in several photosynthetic proteins. Using a dimer modeled on a typical photosynthetic protein, we…

Chemical Physics · Physics 2020-09-03 Amitav Sahu , Jo Sony Kurian , Vivek Tiwari

The processing of energy by transfer and redistribution plays a key role in the evolution of dynamical systems. At the ultrasmall and ultrafast scale of nanosystems, quantum coherence could in principle also play a role and has been…

It is discussed how vibrationally excited molecules in their electronic ground state can transfer their vibrational energy to the electronic motion of neighbors and ionize them. Based on explicit examples of vibrationally excited molecules…

Chemical Physics · Physics 2018-12-05 Lorenz S. Cederbaum

A general theory of electronic excitations in aggregates of molecules coupled to intramolecular vibrations and the harmonic environment is developed for simulation of the third-order nonlinear spectroscopy signals. The model is applied in…

Chemical Physics · Physics 2014-01-17 Vytautas Butkus , Leonas Valkunas , Darius Abramavicius

Electron transfer coupled to a collective vibronic degree of freedom is studied in strongly condensed phase and at lower temperatures where quantum fluctuations are essential. Based on an exact representation of the reduced density matrix…

Statistical Mechanics · Physics 2009-11-10 Joachim Ankerhold , Hartwig Lehle

The interaction between molecular (atomic) electron(s) and the vacuum field of a reflective cavity generates a significant interest thanks to the rapid developments in nanophotonics. Such interaction which lies within the realm of cavity…

Chemical Physics · Physics 2019-05-22 Alexander Semenov , Abraham Nitzan

The rate of energy transfer in donor-acceptor systems can be manipulated via the common interaction with the confined electromagnetic modes of a micro-cavity. We analyze the competition between the near-field short range dipole-dipole…

Quantum Physics · Physics 2018-07-27 Michael Reitz , Francesca Mineo , Claudiu Genes

The electron transfer kinetics of mixed-valence systems is studied via solving the eigen-structure of the two-state non-adiabatic diffusion operator for a wide range of electronic coupling constants and energy bias constants. The calculated…

Chemical Physics · Physics 2007-05-23 Y. Jung , R. J. Silbey , J. Cao

The geometry-dependent energy transfer rate from an electrically pumped inorganic semiconductor quantum well into an organic molecular layer is studied theoretically. We focus on F\"orster-type nonradiative excitation transfer between the…

Mesoscale and Nanoscale Physics · Physics 2018-04-20 Judith Specht , Eike Verdenhalven , Björn Bieniek , Patrick Rinke , Andreas Knorr , Marten Richter

Recently the quantum nature in the energy transport in solar cell and light-harvesting complexes have attracted much attention, as being triggered by the experimental observations. We model the light-harvesting complex (i.e., PEB50 dimer)…

Chemical Physics · Physics 2015-03-05 Zhedong Zhang , Jin Wang

In this paper, we study the role of collective vibrational motion in the phenomenon of electronic energy transfer (EET) along a chain of coupled electronic dipoles with varying excitation frequencies. Previous experimental work on EET in…

Quantum Physics · Physics 2015-03-13 F. L. Semião , K. Furuya , G. J. Milburn

Representation of molecular vibrational degrees of freedom by independent harmonic oscillators, when describing electronic spectra or electronic excitation energy transport, raises unfavourable effects as vibrational energy relaxation…

Chemical Physics · Physics 2018-07-26 Mantas Jakučionis , Vladimir Chorošajev , Darius Abramavičius