Results 71 to 80 of about 607,769 (290)

Scattering in black hole backgrounds and higher-spin amplitudes. Part I

Journal of High Energy Physics, 2023
The scattering of massless waves of helicity ∣ h ∣ = 0 , 1 2 , 1 $$ \mid h\mid =0,\frac{1}{2},1 $$ in Schwarzschild and Kerr backgrounds is revisited in the long-wavelength regime.
Yilber Fabian Bautista, Alfredo Guevara, Chris Kavanagh, Justin Vines   +3 more
doaj   +1 more source

Temporal fluctuations of waves in weakly nonlinear disordered media

, 2001
We consider the multiple scattering of a scalar wave in a disordered medium with a weak nonlinearity of Kerr type. The perturbation theory, developed to calculate the temporal autocorrelation function of scattered wave, fails at short correlation times ...
A. Heiderich, A. Ishimaru, A. Palmer, A.A. Burkov, A.A. Golubentsev, A.A. Karabutov, A.D. Gopal, A.D. Gopal, A.J. van Wonderen, A.J. van Wonderen, A.Yu. Zyuzin, B. Shapiro, B. Shapiro, B. Simons, B. Spivak, D. Bicout, D.A. Boas, D.A. Boas, D.A. Boas, D.A. Weitz, D.J. Durian, D.J. Durian, D.J. Pine, D.J. Pine, E. Akkermans, E.P. Gross, F. Scheffold, F. Scheffold, F.T. Arecchi, G. D’Alessandro, G. D’Alessandro, G. Maret, G. Maret, G. Nisato, H. Gang, H. Stark, H. Stark, H. Stark, H.M. Gibbs, J.C. Earnshow, J.C.J. Paasschens, J.F. de Boer, J.V. Moloney, J.W. Goodman, K.M. Yoo, L.S. Schulman, M. Heckmeier, M. Heckmeier, M.C.W. van Rossum, M.J. Stephen, M.J. Stephen, N. Menon, N. Menon, P. Hebraud, P. Sheng, P.A. Lee, P.L. Ramazza, R. Berkovits, R. Berkovits, R. Bressoux, R. Dashen, R. Höhler, R. Lohwasser, R. Pnini, R. Pnini, R.P. Feynman, S. E. Skipetrov, S.E. Skipetrov, S.E. Skipetrov, S.E. Skipetrov, S.E. Skipetrov, S.E. Skipetrov, S.M. Rytov, U. Frisch, V. Lisy, V.E. Kravtsov, V.E. Kravtsov, V.E. Kravtsov, V.I. Yudson, V.M. Agranovich, V.M. Agranovich, V.M. Agranovich, V.M. Agranovich, V.M. Agranovich, Y.R. Shen   +84 more
core   +3 more sources

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

WIND EFFECT ON THE CHARACTERISTICS OF RADIO WAVE SCATTERING FOR THE TWO-POSITION RADIO ACOUSTIC SOUNDING

Radio Physics and Radio Astronomy, 2017
Purpose: Radio wave scattering by a sound pulse in the atmosphere when wind is present is investigated theoretically. Design/methodology/approach: The asymptotic of the scattered field in the Fresnel diffraction approximation is analyzed with Gaussian
A. S. Bryukhovetski, A. V. Vichkan’
doaj   +1 more source

Cool Kitchen: Processing Starch and Eggshell Powder into Sustainable Coatings for Passive Daytime Cooling

Advanced Functional Materials, EarlyView.
A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song, Evelyn Kubacki, Alexander Berger, Markus Retsch   +3 more
wiley   +1 more source

Parametric resonance in the ultracold Rydberg plasma under the influence of an acoustic wave

Геофизический журнал, 2020
The article considers weakly ionized ultracold Rydberg plasma under the influence of an acoustic wave of the terahertz range. The effect of an acoustic wave on Langmuir oscillations of Rydberg plasma is described using a hydrodynamic approach.
V.M. Rylyuk, L.M. Kuzmina, M.I. Skipa
doaj   +1 more source

Nonreciprocal wave scattering on nonlinear string-coupled oscillators

, 2014
We study scattering of a periodic wave in a string on two lumped oscillators attached to it. The equations can be represented as a driven (by the incident wave) dissipative (due to radiation losses) system of delay differential equations of neutral type.
Lepri, Stefano, Pikovsky, Arkady
core   +1 more source

Nanoscale Mapping of Plasmonic Charge Transport in Nano‐Resonators Based on Resistive Switching Materials

Advanced Functional Materials, EarlyView.
In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang, Seunghyo Park, Shashank Shekhar, Yuhyeon Oh, Seunghun Hong   +4 more
wiley   +1 more source

Surface Effect on Diffractions of Elastic Waves and Stress Concentration near a Cluster of Cylindrical Nanoholes Arranged as Quadrate Shape

Advances in Materials Science and Engineering, 2015
We consider the multiple scattering of elastic waves (P-wave and SV-wave) by a cluster of nanosized cylindrical holes arranged as quadrate shape. When the radius of the holes shrinks to nanometers, the surface elasticity theory is adopted in analysis ...
Ru Yan
doaj   +1 more source

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

Advanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park, Jewoong Lee, In‐Suk Choi, Changsoon Kim   +3 more
wiley   +1 more source