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Related papers: Note: Vibronic coupling in light-harvesting comple…

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The fundamental physical mechanisms of energy transfer in photosynthetic complexes is not yet fully understood. In particular, the degree of efficiency or sensitivity of these systems for energy transfer is not known given their…

Quantum Physics · Physics 2013-05-30 Alireza Shabani , Masoud Mohseni , Herschel Rabitz , Seth Lloyd

Optimizing energy and charge transport is key in design and implementation of efficient two-dimensional (2D) conductive metal-organic frameworks (MOFs) for practical applications. In this work, for the first time, we investigate the role of…

Materials Science · Physics 2025-01-31 David Dell'Angelo , Mohammad R. Momeni , Shaina Pearson , Farnaz A. Shakib

Phototrophic organisms such as plants, photosynthetic bacteria and algae use microscopic complexes of pigment molecules to absorb sunlight. Within the light-harvesting complexes, which frequently have several functional and structural…

A study of the intensity-borrowing mechanisms important to optical cycling transitions in laser-coolable polyatomic molecules arising from non-adiabatic coupling, contributions beyond the Franck-Condon approximation, and Fermi resonances is…

Chemical Physics · Physics 2023-07-19 Chaoqun Zhang , Nicholas R. Hutzler , Lan Cheng

In this paper, we apply the polaron master equation, which offers the possibilities to interpolate between weak and strong system-bath coupling, to study how system-bath couplings affect charge transfer processes in Photosystem II reaction…

Chemical Physics · Physics 2017-08-02 M Qin , H Z Shen , X L Zhao , X X Yi

Several recent studies of energy transfer in photosynthetic light harvesting complexes have revealed a subtle interplay between coherent and decoherent dynamic contributions to the overall transfer efficiency in these open quantum systems.…

Quantum Physics · Physics 2015-05-14 Mohan Sarovar , Yuan-Chung Cheng , K. Birgitta Whaley

Photoinduced carrier dynamics in a correlated electron system on a coupled two-leg ladder lattice are studied. The two-leg ladder Hubbard model is analyzed by utilizing the exact diagonalization method based on the Lanczos algorithm in…

Strongly Correlated Electrons · Physics 2016-05-04 Hiroshi Hashimoto , Sumio Ishihara

Photosynthesis transfers energy efficiently through a series of antenna complexes to the reaction center where charge separation occurs. Energy transfer in vivo is primarily monitored by measuring fluorescence signals from the small…

We derive a Hierarchical Equations of Motion (HEOM) description of nonadiabatic Herzberg-Teller type coupling effects and of non-Condon effects in a system of electronic transitions interacting with intra- and inter-molecular vibrational…

Chemical Physics · Physics 2018-12-26 Joachim Seibt , Tomáš Mančal

We propose a novel scheme for probing vibronic coherence in charge migration in molecules utilizing strong field sequential double ionization. To demonstrate the feasibility of this approach, we perform full simulations of a pump-probe…

Atomic Physics · Physics 2024-01-09 C. H. Yuen , C. D. Lin

We report the electronic transport properties of a new photo-addressable molecular switch. The switching process relies on a new concept based on linear {\pi}-conjugated dynamic systems, in which the geometry and hence the electronic…

Mesoscale and Nanoscale Physics · Physics 2017-06-13 S. Lenfant , Y. Viero , C. Krzeminski , D. Vuillaume , D. Demeter , I. Dobra , M. Ocafrain , P. Blanchard , J. Roncali , C. van Dyck , J. Cornil

We study a fermionic two-band model with the interband transition resonantly coupled to a cavity. This model was recently proposed to explain cavity-enhanced charge transport, but a thorough characterization of the closed system, in…

Computational Physics · Physics 2024-01-08 Sebastian Stumper , Junichi Okamoto

The electronic excitation population and coherence dynamics in the chromophores of the photosynthetic light harvesting complex 2 (LH2) B850 ring from purple bacteria (Rhodopseudomonas acidophila) have been studied theoretically at both…

Chemical Physics · Physics 2012-08-29 Shu-Hao Yeh , Jing Zhu , Sabre Kais

The roles of the vibration motions played in the excitation energy transfer process are studied. It is found that a strong coherent transfer in the hybrid system emerges when the detuning between the donor and the acceptor equals the…

Biological Physics · Physics 2014-12-18 Xin Wang , Hao Chen , Hong-rong Li

The influence of an electron-vibrational coupling on the laser control of electron transport through a molecular wire that is attached to several electronic leads is investigated. These molecular vibrational modes induce an effective…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Jörg Lehmann , Sigmund Kohler , Volkhard May , Peter Hänggi

Charge separation in light-harvesting complexes occurs in a pair of tightly coupled chlorophylls at the heart of photosynthetic reaction centers of both plants and bacteria. Recently it has been shown that quantum coherence can, in…

Biological Physics · Physics 2016-11-28 M. Qin , H. Z Shen , X. X. Yi

One of the most popular subjects now being researched in molecular science is strong light-matter coupling. The introduction of vibrational strong coupling and the formation vibro-polaritonic states tend to modify chemical reactivity,…

Chemical Physics · Physics 2023-08-10 Akhila Kadyan , Monu P. Suresh , Ben Johns , Jino George

We consider models in which two sets of matched two-level systems are coupled to a common oscillator in the case where the oscillator energy is small relative to the two-level transition energies. Since the two sets of two-level systems are…

Other Condensed Matter · Physics 2007-05-23 Peter L. Hagelstein , Irfan U. Chaudhary

Wireless energy harvesting sensor networks constitute a new paradigm, where the motes deployed in the field are no longer constrained by the limited battery resource, but are able to re-charge themselves through directed electromagnetic…

Networking and Internet Architecture · Computer Science 2013-12-04 Antonio Hernandez Coarasa , Prusayon Nintanavongsa , Sugata Sanyal , Kaushik R. Chowdhury

The plant light-harvesting pigment-protein complex LHCII is the major antenna sub-unit of PSII and is generally (though not universally) accepted to play a role in photoprotective energy dissipation under high light conditions, a process…

Molecular Networks · Quantitative Biology 2023-07-27 Callum Gray , Lekshmi Kailas , Peter G. Adams , Christopher D. P. Duffy