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By circumventing the optical diffraction limit, super-resolved fluorescence microscopies enable the study of larger cellular structures and molecular assemblies. However, fluorescence nanoscopy currently lacks the spatiotemporal resolution…

We present results of theoretical description and numerical calculation of the dynamics of molecular liquids based on the Reference Interaction Site Model / Mode-Coupling Theory. They include the temperature-pressure(density) dependence of…

化学物理 · 物理学 2007-05-23 A. E. Kobryn , T. Yamaguchi , F. Hirata

The observation of the Stark-tuned F\"orster resonances between Rydberg atoms excited by narrowband cw laser radiation requires usage of a Stark-switching technique in order to excite the atoms first in a fixed electric field and then to…

We present a statistical study of the transmission and dwell-time matrices in disordered media composed of resonators, focusing on how frequency detuning influences their eigenvalue distributions. Our analysis reveals that the distribution…

光学 · 物理学 2024-12-02 Romain Rescanieres , Romain Pierrat , Arthur Goetschy

We derive equations of motion for the reduced density matrix of a molecular system which undergoes energy transfer dynamics competing with fast internal conversion channels. Environmental degrees of freedom of such a system have no time to…

化学物理 · 物理学 2017-05-24 Joachim Seibt , Tomas Mancal

The standard model of enhanced ionic conductivities in solid electrolyte heterostructures follows from a continuum mean-field description of defect distributions that makes no reference to crystalline structure. To examine ionic transport…

材料科学 · 物理学 2015-06-18 Benjamin J. Morgan , Paul A. Madden

We investigate the structure and the nonlinear dynamics of two rigid polar rotors coupled through the dipole-dipole interaction in an external homogeneous electric field. In the field-free stable head-tail configuration, an excess energy is…

混沌动力学 · 物理学 2020-01-08 Rosario González-Férez , Manuel Iñarrea , J. Pablo Salas , Peter Schmelcher

Y-doped BaZrO$_3$ is a promising proton conductor for intermediate temperature solid oxide fuel cells. In this work, a combination of static DFT calculations and DFT based molecular dynamics (DFT-MD) was used to study proton conduction in…

Rate processes with dynamical disorder are investigated within a simple framework provided by unidirectional electron transfer (ET) with fluctuating transfer rate. The rate fluctuations are assumed to be described by a non-Markovian…

统计力学 · 物理学 2007-05-23 Igor Goychuk

When a particle diffuses in a medium with spatially dependent friction coefficient $\alpha(r)$ at constant temperature $T$, it drifts toward the low friction end of the system even in the absence of any real physical force $f$. This…

统计力学 · 物理学 2015-06-18 Oded Farago , Niels Grønbech-Jensen

In the view of the applications of Forster resonant energy transfer (FRET) in biological systems which especially require FRET in the inrared region we investigate the great advantage of graphene plasmonics in such studies. Focusing on the…

介观与纳米尺度物理 · 物理学 2015-06-17 Svend-Age Biehs , Girish S. Agarwal

Time modulation opens new avenues for light, heat control, and energy harvesting, yet the impact of nonequilibrium dynamics of microscopic particles remains largely unexplored. We develop a microscopic theory to describe radiative heat…

介观与纳米尺度物理 · 物理学 2025-07-03 Hui Pan , Yuhua Ren , Gaomin Tang , Jian-Sheng Wang

The rates of exciton transfer within dyads of perylene diimide and terrylene diimide connected by oligophenylene bridge units have been shown to deviate significantly from those of F\"{o}rster's resonance energy transfer theory, according…

化学物理 · 物理学 2026-01-13 Lei Yang , Seogjoo J. Jang

Models operating on dynamic physiologic signals must distinguish benign, label-preserving variability from true concept change. Existing concept-drift frameworks are largely distributional and provide no principled guidance on how much a…

机器学习 · 计算机科学 2026-03-02 Timothy Oladunni , Blessing Ojeme , Kyndal Maclin , Clyde Baidoo

In organic field effect transistors (FETs), charges move near the surface of an organic semiconductor, at the interface with a dielectric. In the past, the nature of the microscopic motion of charge carriers -that determines the device…

材料科学 · 物理学 2015-06-25 I. N. Hulea , S. Fratini , H. Xie , C. L. Mulder , N. N. Iossad , G. Rastelli , S. Ciuchi , A. F. Morpurgo

Coherent electron transfer from a localized state trapped in a quantum dot into a ballistic conductor, taking place in on-demand electron sources, in general may result in excitation of particle-hole pairs. We consider a simple model for…

介观与纳米尺度物理 · 物理学 2008-11-07 J. Keeling , A. V. Shytov , L. S. Levitov

Ionic diffusion in solids is central to energy storage, electronics, and catalysis, yet its chemical origins are difficult to resolve because conventional diffusion models struggle with effects of confinement, crystallographic disorder,…

In this work we study the diffusion mechanisms in lithium disilicate melt using molecular dynamics simulation, which has an edge over other simulation methods because it can track down actual atomic rearrangements in materials once a…

材料科学 · 物理学 2014-05-30 Luis G. V. Gonçalves , José P. Rino

Optical fluorescence imaging is capable of measuring both the spatial and rotational dynamics of single molecules. However, unavoidable measurement noise will result in inaccurate estimates of rotational dynamics, causing a molecule to…

光学 · 物理学 2019-05-22 Oumeng Zhang , Matthew D. Lew

Fluorite ferroelectrics are exciting candidates for next-generation non-volatile memory devices because their unique ferroelectric mechanism, which arises from unconventional oxygen displacements, permits ferroelectricity with minimal…