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We derive the stochastic Schr\"odinger equation for the system wave vector and use it to describe the excitation energy transfer dynamics in molecular aggregates. We suggest a quantum-measurement based method of estimating the excitation…

Chemical Physics · Physics 2014-01-15 Vytautas Abramavicius , Darius Abramavicius

We present a detailed theoretical study of the transfer of electronic excitation energy through the Fenna-Matthews-Olson (FMO) pigment-protein complex, using the new developed modified scaled hierarchical approach [Shi Q. et al, J Chem Phys…

Chemical Physics · Physics 2011-03-17 Jing Zhu , Sabre Kais , Patrick Rebentrost , Alán Aspuru-Guzik

Determining how energy flows within and between molecules is crucial for understanding chemical reactions, material properties, and even vital processes such as photosynthesis. While the general principles of energy transfer are well…

Other Condensed Matter · Physics 2025-12-16 Ignacio Gustin , Chang Woo Kim , Ignacio Franco

Using methods of condensed matter and statistical physics, we examine the transport of excitons through the Fenna-Matthews-Olson (FMO) complex from a receiving antenna to a reaction center. Writing the equations of motion for the exciton…

Biological Physics · Physics 2016-02-23 Lev Mourokh , Franco Nori

Underlying physical principles for the high efficiency of excitation energy transfer in light-harvesting complexes are not fully understood. Notably, the degree of robustness of these systems for transporting energy is not known considering…

Quantum Physics · Physics 2015-03-19 Masoud Mohseni , Alireza Shabani , Seth Lloyd , Herschel Rabitz

Collective protein modes are expected to be important for facilitating energy transfer in the Fenna-Matthews-Olson (FMO) complex, however to date little work has focussed on the microscopic details of these vibrations. The nonlinear network…

Biological Physics · Physics 2016-07-07 Sarah E Morgan , Daniel J Cole , Alex W Chin

Excitonic models of light-harvesting complexes, where the vibrational degrees of freedom are treated as a bath, are commonly used to describe the motion of the electronic excitation through a molecule. Recent experiments point toward the…

Quantum Physics · Physics 2011-07-19 Christoph Kreisbeck , Tobias Kramer , Mirta Rodriguez , Birgit Hein

We have evaluated excitation energy transfer rates in photosyntetic complexes using the exact HEOM method and various approximate methods frequently used in the literature, namely, the F\"orster method, the Redfield method, the modified…

Chemical Physics · Physics 2014-05-19 Simon Jesenko , Marko Žnidarič

Two-dimensional optical spectroscopy experiments have shown that exciton transfer pathways in the Fenna-Matthews-Olson (FMO) photosynthetic complex differ drastically under reduced and oxidised conditions, suggesting a functional role for…

The dynamics of the excitation energy transfer (EET) in photosynthetic complexes is an interesting question both from the perspective of fundamental understanding and the research in artificial photosynthesis. Challenges persist in…

Chemical Physics · Physics 2024-06-25 Amartya Bose , Peter L. Walters

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

We develop a quantum scattering model to describe the exciton transport through the Fenna-Matthews-Olson(FMO) complex. It is found that the exciton transport involved the optimal quantum coherence is more efficient than that involved…

Biomolecules · Quantitative Biology 2016-12-28 Bao-quan Ai , Shi-liang Zhu

Recent experimental observations of time-dependent beatings in the two-dimensional echo-spectra of light-harvesting complexes at ambient temperatures have opened up the question whether coherence and wave-like behaviour plays a significant…

Biological Physics · Physics 2012-02-08 Birgit Hein , Christoph Kreisbeck , Tobias Kramer , Mirta Rodríguez

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

A remarkable amount of theoretical research has been carried out to elucidate the physical origins of the recently observed long-lived quantum coherence in the electronic energy transfer process in biological photosynthetic systems.…

Quantum Physics · Physics 2015-03-19 Sangwoo Shim , Patrick Rebentrost , Stéphanie Valleau , Alan Aspuru-Guzik

The Wigner-Weisskopf-type model developed in [R. Alicki and F. Giraldi, J. Phys. B {\bf 44}, 154020 (2011)] is applied to the biological process of energy transfer from a large peripheral light harvesting antenna to the reaction center.…

Quantum Physics · Physics 2016-08-14 Robert Alicki , Wiesław Miklaszewski

The conversion of an absorbed photon from the exciton energy into the reaction centre in the photosynthetic complex has a near unit efficiency. It is becoming clear that any classical model, where the exciton hopping is modeled by a…

Quantum Physics · Physics 2010-06-21 Vlatko Vedral , Tristan Farrow

Primitive photosynthetic cells appear over three billion years prior to any other more complex life-forms, thus it is reasonable to assume that Nature has designed a photosynthetic mechanism using minimal resources but honed to perfection…

Quantum Physics · Physics 2011-06-23 B. Cui , X. Y. Zhang , X. X. Yi

In many molecular systems one encounters the situation where electronic excitations couple to a quasi-continuum of phonon modes. That continuum may be highly structured e.g. due to some weakly damped high frequency modes. To handle such a…

Quantum Physics · Physics 2011-06-14 Jan Roden , Walter T. Strunz , Alexander Eisfeld

To explain experimentally observed oscillatory dynamics of highly efficient process of excitation energy transfer (EET) in Fenna-Matthews-Olson (FMO) complex, most theoretical models assume the same local protein environment around all the…

Biological Physics · Physics 2018-01-26 Davinder Singh , Shubhrangshu Dasgupta
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