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We investigate theoretically the transfer of excitation along a one dimensional chain of monomers for a situation in which initially the excitation is shared coherently by two monomers. We show that depending on the relative phase between…

Quantum Physics · Physics 2011-02-01 Alexander Eisfeld

We investigate the scattered field from $N$ identical two-level atoms resonantly driven by a weak coherent field in a one-dimensional waveguide. For atoms separated by the drive wavelength, increasing the number of atoms progressively…

Quantum Physics · Physics 2025-06-06 Zeidan Zeidan , Therese Karmstrand , Maryam Khanahmadi , Göran Johansson

Highly efficient transfer of quantum resources including quantum excitations, states, and information on quantum networks is an important task in quantum information science. Here, we propose a bipartite-graph framework for studying quantum…

Quantum Physics · Physics 2025-04-23 Cheng Liu , Yu-Hong Liu , Le-Man Kuang , Franco Nori , Jie-Qiao Liao

Processes involving ultrafast laser driven electron-phonon dynamics play a fundamental role in the response of quantum systems in a growing number of situations of interest, as evidenced by phenomena such as strongly driven phase…

Materials Science · Physics 2024-03-01 Kevin Lively , Shunsuke A. Sato , Guillermo Albareda , Angel Rubio , Aaron Kelly

We show a new mechanism to extract energy from non-equilibrium fluctuations typical of periodically driven non-Hermitian systems. The transduction of energy between the driving force and the system is revealed by an \emph{anomalous}…

Statistical Mechanics · Physics 2009-10-31 T. Alarcon , A. Perez-Madrid , J. M. Rubi

Shared autonomous electric vehicles can provide on-demand transportation for passengers while also interacting extensively with the electric distribution system. This interaction is especially beneficial after a disaster when the large…

Systems and Control · Electrical Eng. & Systems 2025-04-18 Jake Robbennolt , Meiyi Li , Javad Mohammadi , Stephen D. Boyles

The performance of accelerators profits from phase space tailoring by coupling of planes. The previously applied techniques swap the emittances among the three planes but the set of available emittances is fixed. In contrast to these…

Accelerator Physics · Physics 2015-06-23 L. Groening , M. Maier , C. Xiao , L. Dahl , P. Gerhard , O. K. Kester , S. Mickat , H. Vormann , M. Vossberg , M. Chung

A computational model incorporating insights from quantum theory is proposed to describe and explain synaptic message transmission. We propose that together, neurotransmitters and their corresponding receptors, function as a physical…

Neurons and Cognition · Quantitative Biology 2023-10-03 Lizhi Xin , Kevin Xin , Houwen Xin

We study the spectral properties of the process of explosive percolation. In particular, we explore how the maximum eigenvalue of the adjacency matrix of a network which governs the spreading efficiency evolves as the density of connection…

Physics and Society · Physics 2015-06-12 Ning Ning Chung , Lock Yue Chew , Choy Heng Lai

The dynamics of a packages diffusion process within a selforganized network is analytically studied by means of an extended $f$% -spin facilitated kinetic Ising model (Fredrickson-Andersen model) using a Fock-space representation for the…

Statistical Mechanics · Physics 2009-11-07 C. Pigorsch , S. Trimper

We present an efficient routing approach for delivering packets in complex networks. On delivering a message from a node to a destination, a node forwards the message to a neighbor by estimating the waiting time along the shortest path from…

Networking and Internet Architecture · Computer Science 2008-06-12 Huan Zhang , Zonghua Liu , Ming Tang , P. M. Hui

Time-resolved spectroscopy provides the main tool for analyzing the dynamics of excitonic energy transfer in light-harvesting complexes. To infer time-scales and effective coupling parameters from experimental data requires to develop…

Chemical Physics · Physics 2018-11-28 Tobias Kramer , Mirta Rodriguez , Yaroslav Zelinskyy

Electronic energy transfer in the condensed phase, such as that occurring in photosynthetic complexes, frequently occurs in regimes where the energy scales of the system and environment are similar. This situation provides a challenge to…

Statistical Mechanics · Physics 2015-06-03 Timothy C. Berkelbach , Thomas E. Markland , David R. Reichman

In a companion paper [1], we present a general approach to evaluate the impact of cognition in a downlink cellular system in which multiple relays assist the transmission of the base station. This approach is based on a novel theoretical…

Information Theory · Computer Science 2013-03-29 Stefano Riniy , Ernest Kurniawan , Levan Ghaghanidze , Andrea Goldsmith

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 establish a general mechanism for highly efficient quantum transport through finite, disordered 3D networks. It relies on the interplay of disorder with centro-symmetry and a dominant doublet spectral structure, and can be controlled by…

Increasing the collection efficiency from solid-state emitters is an important step towards achieving robust single photon sources, as well as optically connecting different nodes of quantum hardware. A metallic substrate may be the most…

Quantum Physics · Physics 2017-04-12 Dale Scerri , Ted S. Santana , Brian D. Gerardot , Erik M. Gauger

Deep neural network architectures have attained remarkable improvements in scene understanding tasks. Utilizing an efficient model is one of the most important constraints for limited-resource devices. Recently, several compression methods…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Mahdi Ghorbani , Fahimeh Fooladgar , Shohreh Kasaei

Efficient energy transport is highly desirable for organic semiconductor (OSC) devices such as photovoltaics, photodetectors, and photocatalytic systems. However, photo-generated excitons in OSC films mostly occupy highly localized states…

Here we study incoherent transport through molecular wire treated as a linear chain of absorbers, where the phase-breaking processes are modeled by the use of imaginary point-like potentials. The calculations are performed within a…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Kamil Walczak