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NASA's Gateway to Astronaut Photography of Earth Contains over 30000 photos of 2500 cataloged urban lightscapes (urban night lights) taken from the International Space Station. Over 100 of these multispectral DSLR photos are of sufficient…

Physics and Society · Physics 2022-08-16 Christopher Small

Rahimi and Recht (2007) introduced the idea of decomposing positive definite shift-invariant kernels by randomly sampling from their spectral distribution for machine learning applications. This famous technique, known as Random Fourier…

Machine Learning · Computer Science 2026-02-24 Nicolas Langrené , Xavier Warin , Pierre Gruet

We extract the site energies and spectral densities of the Fenna-Matthews-Olson (FMO) pigment protein complex of green sulphur bacteria from simulations of molecular dynamics combined with energy gap calculations. Comparing four different…

Biological Physics · Physics 2015-07-01 Xiaoqing Wang , Gerhard Ritschel , Sebastian Wüster , Alexander Eisfeld

The early steps of photosynthesis involve the photo-excitation of reaction centres (RCs) and light-harvesting (LH) units. Here, we show that the --historically overlooked-- excitonic delocalisation across RC and LH pigments results in a…

We developed a multiscale approach (MultiSCAAL) that integrates the potential of mean force (PMF) obtained from all-atomistic molecular dynamics simulations with a knowledge-based energy function for coarse-grained molecular simulations in…

Biological Physics · Physics 2010-05-10 Antonios Samiotakis , Dirar Homouz , Margaret S. Cheung

Simultaneous occurrence of the Mott and band gap in correlated semiconductors results in a complex optical response with the nature of the absorption edge difficult to resolve both experimentally and theoretically. Here, we combine a…

Strongly Correlated Electrons · Physics 2021-06-16 Anna Galler , James Boust , Alain Demourgues , Silke Biermann , Leonid V. Pourovskii

The AMS-02 collaboration recently released cosmic-ray F/Si data of unprecedented accuracy. Cosmic-ray (CR) fluorine is predominantly produced by fragmentation of heavier progenitors, while silicon is mostly accelerated at source. This ratio…

High Energy Astrophysical Phenomena · Physics 2024-07-31 E. Ferronato Bueno , L. Derome , Y. Génolini , D. Maurin , V. Tatischeff , M. Vecchi

The theory of heavy ion single charge exchange reactions is reformulated. In momentum space the reaction amplitude factorizes into a product of projectile and target transition form factors, folded with the nucleon-nucleon isovector…

Nuclear Theory · Physics 2018-10-31 Horst Lenske , Jessica I. Bellone , Maria Colonna , Jose-Antonio Lay

We have developed a new coherent dedispersion mode to study the emission of Fast Radio Bursts that trigger the voltage capture capability of the Australian SKA Pathfinder (ASKAP) interferometer. In principle the mode can probe emission…

Much of the current theory of adaptation is based on Gillespie's mutational landscape model (MLM), which assumes that the fitness values of genotypes linked by single mutational steps are independent random variables. On the other hand, a…

Populations and Evolution · Quantitative Biology 2014-11-11 Johannes Neidhart , Ivan G. Szendro , Joachim Krug

In this work, protein-surface interactions were probed in terms of adsorption and desorption of a model protein, bovine serum albumin, on a low-fouling surface with single-molecule localization microscopy. Single-molecule experiments enable…

Chemical Physics · Physics 2020-02-26 Mohammadhasan Hedayati , Matt J. Kipper , Diego Krapf

The implementation of diffusion-based pansharpening task is predominantly constrained by its slow inference speed, which results from numerous sampling steps. Despite the existing techniques aiming to accelerate sampling, they often…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Shiqi Cao , Liangjian Deng , Shangqi Deng

Phase Resolved Optical Emission Spectroscopy (PROES) measurements combined with 1d3v Particle-in-Cell/Monte Carlo Collision (PIC/MCC) simulations are performed to investigate the excitation dynamics in low-pressure capacitively coupled…

Plasma Physics · Physics 2023-07-21 Aranka Derzsi , Mate Vass , Ranna Masheyeva , Benedek Horvath , Zoltan Donko , Peter Hartmann

We propose that the 2.7 micron H_2O, 3.3 micron CH_4 and 4.6 micron CO absorption bands can be good tracers of chromospheric activity in brown dwarfs. In our previous study, we found that there are difficulties in explaining entire spectra…

Solar and Stellar Astrophysics · Physics 2015-06-18 Satoko Sorahana , Takeru K. Suzuki , Issei Yamamura

Molecules present a versatile platform for quantum information science, and are candidates for sensing and computation applications. Robust spin-optical interfaces are key to harnessing the quantum resources of materials. To date,…

A common model of stochastic auto-regulatory gene expression describes promoter switching via cooperative protein binding, effective protein production in the active state and dilution of proteins. Here we consider an extension of this…

Subcellular Processes · Quantitative Biology 2020-04-07 James Holehouse , Abhishek Gupta , Ramon Grima

The structure-function relationship is at the heart of biology and major protein deformations are correlated to specific functions. In the case of heme proteins, doming is associated with the respiratory function in hemoglobin and…

We demonstrate theoretically the Fano resonance and the conversion from fast to slow light in a hybrid quantum dot-semiconductor/superconductor ring device, where the QD is coupled to a pair of MFs appearing in the hybrid S/S ring device.…

Quantum Physics · Physics 2019-03-12 Hua-Jun Chen

Single dye molecules at cryogenic temperatures display many spectroscopic phenomena known from free atoms and are thus promising candidates for fundamental quantum optical studies. However, the existing techniques for the detection of…

Quantum Physics · Physics 2008-02-12 Gert Wrigge , Ilja Gerhardt , Jaesuk Hwang , Gert Zumofen , Vahid Sandoghdar

F\"orster theory describes electronic exciton energy migration in molecular assemblies as an incoherent hopping process between donor and acceptor molecules. The rate is expressed in terms of the overlap integral between donor fluorescence…

Chemical Physics · Physics 2018-10-17 Marco Schröter , Tõnu Pullerits , Oliver Kühn
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