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We study the temperature dependent dynamical processes of a Si10H16 cluster and obtain a blue shift of the Si-Si vibrational modes with transverse acoustic character and a red shift of the other vibrational modes with increasing…

Materials Science · Physics 2015-06-12 Peng Han , Linas Vilciauskas , Gabriel Bester

The persistent motility of the individual constituents in microbial suspensions represents a prime example of so-called active matter systems. Cells consume energy, exert forces and move, overall releasing the constraints of equilibrium…

Biological Physics · Physics 2020-11-02 Armand Javadi , Jorge Arrieta , Idan Tuval , Marco Polin

We propose a driven optical cavity quantum electrodynamics (QED) set up aimed at directly probing energy transport dynamics in photosynthetic biomolecules. We show that detailed information concerning energy transfer paths and…

We investigate how optical second-order cross correlations witness the quantum features of a prototype donor-acceptor light-harvesting unit. By considering a pair of detuned two-level emitters electronically coupled and incoherently driven…

Chemical Physics · Physics 2026-01-30 Hallmann Óskar Gestsson , Alexandra Olaya-Castro

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

We show that in the recent artificial light-harvesting experiment [Angewandte Chemie Intl. Ed. 55, 2759 (2016)] on organic nanocrystals self-assembled from difluoroboron chromophores, the spontaneous emission of an excited pigment should…

Applied Physics · Physics 2019-07-03 Yong-Cong Chen , Bo Song , Anthony J. Leggett , Ping Ao , Xiaomei Zhu

Mechanism of vibronic amplification of transport of excitons was discussed in relation to quantum photosynthesis. Vibrones (some modes of vibrations of molecules) are observed experimentally in photosynthetic systems. In the present paper…

Chemical Physics · Physics 2018-10-23 S. V. Kozyrev

We experimentally study the effect of near field coupling on the transmission of light in terahertz metasurfaces, possessing slightly distinctive SRR resonances. Our results show that the interplay between the strengths of electric and…

For light harvesters with a reaction center complex (LH1-RC complex) of three types, we propose an experiment to verify our analysis based upon antenna theories that automatically include the required structural information. Our analysis…

Biological Physics · Physics 2018-01-25 Julian Juhi-Lian Ting

Hot carrier solar cells promise theoretical power conversion efficiencies far beyond the single junction limit. However, practical implementations of hot carrier solar cells have lagged far behind those theoretical predictions. Reciprocity…

Experimental and theoretical evidence point out to the crucial role of specific resonant intramolecular vibrational modes in the interpretation of long-lived coherences observed in two-dimensional spectra of some natural and synthetic light…

Chemical Physics · Physics 2020-07-15 Leonardo F. Calderón , Leonardo A. Pachón

The coupling between doubly degenerate electronic states and doubly degenerate vibrations is analysed for an octahedral system on the basis of the introduction of an anharmonic Morse potential for the vibronic part. The vibrations are…

Quantum Physics · Physics 2007-05-23 N. M. Avram , Gh. E. Draganescu , M. R. Kibler

The quantum dynamics of entanglement is widely revealed in photosynthetic light-harvesting complexes. Different from the previous work, we explore the properties of exciton transport and photosynthesis assisted by the quantum entanglement…

Applied Physics · Physics 2024-03-12 Lu-Xin Xu , Shun-Cai Zhao , Ling-Fang Li

The development of energy harvesting systems based on fluid/structure interactions is part of the global search for innovative tools to produce renewable energy. In this paper, the possibility to harvest energy from a flow using…

Fluid Dynamics · Physics 2012-03-02 Clement Grouthier , Sebastien Michelin , Emmanuel de Langre

Intracellular cargo transport can arise from passive diffusion, active motor-driven transport along cytoskeletal filament networks, and passive advection by fluid flows entrained by such motor/cargo motion. Active and advective transport…

Biological Physics · Physics 2012-07-24 P. Khuc Trong , J. Guck , R. E. Goldstein

The coherent energy transfer between two quantum devices (a quantum charger and a quantum battery) mediated by a photonic cavity is investigated, in presence of dissipative environments, with particular focus on the the ultrastrong coupling…

Quantum Physics · Physics 2024-05-09 Alba Crescente , Dario Ferraro , Maura Sassetti

We use quantum kinetic theory to calculate the thermoelectric transport properties of the 2D single band Fermi-Hubbard model in the weak coupling limit. For generic filling, we find that the high-temperature limiting behaviors of the…

Quantum Gases · Physics 2021-11-03 Thomas G. Kiely , Erich J. Mueller

Vibronic coupling constants in the monoanionic, trianionic, and excited states of picene are evaluated from the total energy gradients using the density functional theory. Employing the calculated vibronic coupling constants in the excited…

Chemical Physics · Physics 2015-06-04 Tohru Sato , Naoya Iwahara , Kazuyoshi Tanaka

We model energy transfer between two coupled four-level chromophores with arbitrarily spaced energy levels. Our analysis takes into account the crucial---yet often ignored---process of initial excitation by light that is incident on the…

Quantum Physics · Physics 2012-02-17 Chi-Han Chang , Agata M. Branczyk , Gregory D. Scholes , Daniel F. V. James

We propose a dynamic mechanism for the reversible regulation of photosynthesis in varying light environments. We employ a three-level quantum model to take into account the correlations between charge donors and charge acceptors immediately…

Biological Physics · Physics 2024-11-13 Guang Yang , Gen Tatara