Results 61 to 70 of about 1,885,669 (194)
Self-averaging of Wigner transforms in random media
, 2002 We establish the self-averaging properties of the Wigner transform of a mixture of states in the regime when the correlation length of the random medium is much longer than the wave length but much shorter than the propagation distance.
Bal +21 more
core +2 more sources
Phonons in Random Elastic Media and the Boson Peak [PDF]
, 2004 We show that the density of states of random wave equations, normalized by the square of the frequency, has a peak - sometimes narrow and sometimes broad - in the range of wave vectors between the disorder correlation length and the interatomic spacing ...
A. Altland +4 more
core +1 more source
New Journal of Physics, 2018 Keller’s theorem relates the components of the macroscopic dielectric response of a binary two-dimensional composite system with those of the reciprocal system obtained by interchanging its components.
Guillermo P Ortiz, W Luis Mochán
doaj +1 more source
Transition fronts of two species competition lattice systems in random media
Electronic Journal of Differential Equations, 2020 This article studies the existence and non-existence of transition fronts for a two species competition lattice system in random media, and explores the influence of randomness of the media on the wave profiles and wave speeds of such transition ...
Feng Cao, Lu Gao
doaj
Transition Fronts in Time Heterogeneous and Random Media of Ignition Type [PDF]
, 2015 The current paper is devoted to the investigation of wave propagation phenomenon in reaction-diffusion equations with ignition type nonlinearity in time heterogeneous and random media.
Shen, Wenxian, Shen, Zhongwei
core
Transverse confinement of waves in 3D random media
, 2010 We study the transmission of a tightly focused beam through a thick slab of 3D disordered medium in the Anderson localized regime. We show that the transverse profile of the transmitted beam exhibits clear signatures of Anderson localization and that its
B. A. van Tiggelen +5 more
core +3 more sources
Dynamic Correlation in Wave Propagation in Random Media
, 2004 We report time-resolved measurements of the statistics of pulsed transmission through quasi-one-dimensional dielectric media with static disorder. The normalized intensity correlation function with displacement and polarization rotation for an incident ...
A. A. Chabanov +7 more
core +1 more source
Optomechanics of random media [PDF]
Physical Review A, 2015 7 pages, 4 ...
Gentilini S., Conti C.
openaire +6 more sources
Homogenization in elastic random media
Computer Assisted Methods in Engineering and Science, 2023 The theoretical foundation and a numerical procedure of deriving stochastic effective properties of linear-elastic periodic fibre composite are presented.
Marcin Kamiński
doaj
Investigation of pore-scale random porous media using lattice boltzmann method [PDF]
Journal of Heat and Mass Transfer Research, 2015 The permeability and tortuosity of pore-scale two and three-dimensional random porous media were calculated using the Lattice Boltzmann method (LBM). Effects of geometrical parameters of medium on permeability and tortuosity were investigated as well ...
Alireza Azhdari Heravi +2 more
doaj +1 more source