arbitrary shape in physics

arbitrary shape in physics

Implementation of the radiative transfer equation on block-structured grids for modeling fluorescence light propagation in tissue with arbitrary shape Ludguier D. Montejo, Alexander D. … The net Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between well-separated spin distributions can be mapped onto a RKKY interaction between two point-like effective moments. See Off-Campus Access to Physical Review for further instructions. In this paper metallic spheres, prolate ellipsoids, and conical bodies of arbitrary size, placed in vacuum and near a metallic surface are considered. (2018) Asymptotic analysis for close evaluation of layer potentials. Rather than relying on the periodic Green's function as classical BIE methods do, the method combines the free-space Green's function with a small auxiliary basis and imposes periodicity as an extra linear condition. The APS Physics logo and Physics logo are trademarks of the American Physical Society. It is shown that the presence of the metallic surface results in an additional field enhancement which is strongly dependent on the apex shape of the bodies. The effective moments, which a strongly oscillating dependence on the size, shape, and orientation of the spin distribution, are discussed for a variety of microscopic and macroscopic configurations. The effective moments, which a strongly oscillating dependence on the size, shape, and orientation of the spin distribution, are discussed for a variety of microscopic and macroscopic configurations. To address this, we have been improving access via several different mechanisms. (2018) Flexibly imposing periodicity in kernel independent FMM: A multipole-to-local operator approach. Computational Methods in Science and Engineering, A Fast Algorithm for Simulating Multiphase Flows Through Periodic Geometries of Arbitrary Shape, © 2016, Society for Industrial and Applied Mathematics. abstract = "The net Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between well-separated spin distributions can be mapped onto a RKKY interaction between two point-like effective moments. DOI:https://doi.org/10.1103/PhysRevB.70.075402, Stefan Klein†, Tobias Witting, and Klaus Dickmann, To celebrate 50 years of enduring discoveries, APS is offering 50% off APCs for any manuscript submitted in 2020, published in any of its hybrid journals: PRL, PRA, PRB, PRC, PRD, PRE, PRApplied, PRFluids, and PRMaterials. (2020) A calculus for flows in periodic domains. (2017) Dynamics of a multicomponent vesicle in shear flow. (2018) A Unified Integral Equation Scheme for Doubly Periodic Laplace and Stokes Boundary Value Problems in Two Dimensions. Conditions and any applicable Click on title above or here to access this collection. As a result, we can exploit existing free-space solver libraries, quadratures, and fast algorithms and handle a large number of vesicles in a geometrically complex channel. By continuing you agree to the use of cookies. N2 - The net Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between well-separated spin distributions can be mapped onto a RKKY interaction between two point-like effective moments. Agreement. Information about registration may be found here. Physical Review B™ is a trademark of the American Physical Society, registered in the United States, Canada, European Union, and Japan. Enhancement factors of the electric field of these bodies consisting of Na, Ag, Au, and Cu are calculated surface averaged and at the poles. (2020) An integral equation method for closely interacting surfactant‐covered droplets in wall‐confined Stokes flow. Large field enhancement factors (up to several hundred times) were indeed observed for these metals. By using two types of fast algorithms---(i) the fast multipole method for the computation of the vesicle-vesicle and the vesicle-channel hydrodynamic interaction, and (ii) a fast direct solver for the BIE on the fixed channel geometry---the computational cost is reduced to ${\cal O}(N)$ per time step, where $N$ is the spatial discretization size. We hope this content on epidemiology, disease modeling, pandemics and vaccines will help in the rapid fight against this global problem. In computational physics, we "always" use programming to solve the problem, because computer program can calculate large and complex calculation "quickly". (2020) Simulating cilia-driven mixing and transport in complex geometries. Calculation of the electric-field enhancement at nanoparticles of arbitrary shape in close proximity to a metallic surface Pavel I. Geshev, Stefan Klein, Tobias Witting, Klaus Dickmann, and Michael Hietschold Phys. title = "Ruderman-Kittel-Kasuya-Yosida interactions between spin distributions of arbitrary shape". Fingerprint Dive into the research topics of 'Ruderman-Kittel-Kasuya-Yosida interactions between spin distributions of arbitrary shape'. Particular emphasis is on the relation between RKKY interactions and band-structure Heisenberg exchange constants in itinerant magnets and on two-ion anisotropy contributions to the magnetocrystalline anisotropy of rare-earth ions.". (2020) An accurate integral equation method for Stokes flow with piecewise smooth boundaries. Sign up to receive regular email alerts from Physical Review B. ISSN 2469-9969 (online), 2469-9950 (print). note = "44th Annual Conference on Magnetism and Magnetic Materials ; Conference date: 15-11-1999 Through 18-11-1999", 44th Annual Conference on Magnetism and Magnetic Materials. Moreover, the direct solver inverts the wall BIE operator at $t = 0$, stores its compressed representation, and applies it at every time step to evolve the vesicle positions, leading to dramatic cost savings compared to classical approaches. Learn More ». Only the shape was specified. Through this difficult time APS and the Physical Review editorial office are fully equipped and actively working to support researchers by continuing to carry out all editorial and peer-review functions and publish research in the journals as well as minimizing disruption to journal access. AB - The net Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between well-separated spin distributions can be mapped onto a RKKY interaction between two point-like effective moments. Together they … journal = "Journal of Applied Physics". In response to the outbreak of the novel coronavirus SARS-CoV-2 and the associated disease COVID-19, SIAM has made the following collection freely available. author = "R. Skomski and Sabiryanov, {R. F.} and Jaswal, {S. S.}". Use of the American Physical Society websites and journals implies that R. Skomski, R. F. Sabiryanov, S. S. Jaswal, Research output: Contribution to journal › Conference article › peer-review. (2019) Electrohydrodynamics of deflated vesicles: budding, rheology and pairwise interactions. (2018) Harmonic surface mapping algorithm for fast electrostatic sums. I calculate the modes of vibration of membranes of arbitrary shape using a collocation approach based on Little Sinc Functions. Dive into the research topics of 'Ruderman-Kittel-Kasuya-Yosida interactions between spin distributions of arbitrary shape'. (2017) Fast multipole method applied to Lagrangian simulations of vortical flows. The scheme also expands the possibilities for using complex internal states of light to transmit data. publisher = "American Institute of Physics Publising LLC". Particular emphasis is on the relation between RKKY interactions and band-structure Heisenberg exchange constants in itinerant magnets and on two-ion anisotropy contributions to the magnetocrystalline anisotropy of rare-earth ions. There are so many programming languages that are used today to solve many numerical problems, Matlab for example. The effective moments, which a strongly oscillating dependence on the size, shape, and orientation of the spin distribution, are discussed for a variety of microscopic and macroscopic configurations.

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