scholarly journals Inexpensive discrete atomistic model technique for studying excitations on infinite disordered media: The case of orientational glass ArN2

2016 ◽  
Vol 107 (12) ◽  
pp. 1080-1080
Author(s):  
V. F. González-Albuixech ◽  
A. Gaita-Ariño
Keyword(s):  
Disordered Media ◽  
Atomistic Model ◽  
Orientational Glass ◽  
Model Technique

LBE Flows in Disordered Media

2018 ◽  
Author(s):  
Sauro Succi
Keyword(s):  
Porous Media ◽  
Fluid Mechanics ◽  
Condensed Matter ◽  
Disordered Media ◽  
Environmental Sciences ◽  
Science And Engineering ◽  
Particle Trajectories ◽  
Irregular Geometries ◽  
Numerical Tool ◽  
Bounce Back

The study of transport phenomena in disordered media is a subject of wide interdisciplinary concern, with many applications in fluid mechanics, condensed matter, life and environmental sciences as well. Flows through grossly irregular (porous) media is a specific fluid mechanical application of great practical value in applied science and engineering. It is arguably also one of the applications of choice of the LBE methods. The dual field–particle character of LBE shines brightly here: the particle-like nature of LBE (populations move along straight particle trajectories) permits a transparent treatment of grossly irregular geometries in terms of elementary mechanical events, such as mirror and bounce-back reflections. These assets were quickly recognized by researchers in the field, and still make of LBE (and eventually LGCA) an excellent numerical tool for flows in porous media, as it shall be discussed in this Chapter.

scholarly journals Anomalous Anderson localization behavior in gain-loss balanced non-Hermitian systems

Nanophotonics ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 443-452
Author(s):  
Tianshu Jiang ◽  
Anan Fang ◽  
Zhao-Qing Zhang ◽  
Che Ting Chan
Keyword(s):  
Wave Propagation ◽  
Electromagnetic Waves ◽  
Anderson Localization ◽  
Random Media ◽  
Normal Incidence ◽  
Disordered Media ◽  
One Dimensional ◽  
Gain Loss ◽  
The Waves ◽  
Localization Behavior

AbstractIt has been shown recently that the backscattering of wave propagation in one-dimensional disordered media can be entirely suppressed for normal incidence by adding sample-specific gain and loss components to the medium. Here, we study the Anderson localization behaviors of electromagnetic waves in such gain-loss balanced random non-Hermitian systems when the waves are obliquely incident on the random media. We also study the case of normal incidence when the sample-specific gain-loss profile is slightly altered so that the Anderson localization occurs. Our results show that the Anderson localization in the non-Hermitian system behaves differently from random Hermitian systems in which the backscattering is suppressed.

scholarly journals Topological Metric Detects Hidden Order in Disordered Media

2021 ◽  
Vol 126 (4) ◽  
Author(s):  
Dominic J. Skinner ◽  
Boya Song ◽  
Hannah Jeckel ◽  
Eric Jelli ◽  
Knut Drescher ◽  
...  
Keyword(s):  
Disordered Media ◽  
Hidden Order

The Crystallographic Modeling of C60 Orientations in a Cubic Lattice

1994 ◽  
Vol 359 ◽  
Author(s):  
Veniamin Sh. Shekhtman ◽  
Ruben A. Dilanyan ◽  
Oksana G. Rybchenko
Keyword(s):  
Main Axis ◽  
Cubic Lattice ◽  
Orientational Glass ◽  
Orientational Ordering ◽  
Different Levels

ABSTRACTThe symmetry conditions which rule the matching of a fulleren molecule's main axis in a translational lattice are considered. The full set of orientational states for the structure of fullerene are obtained. The different levels of correlations between symmetry axes of icosahedral molecule and cubic lattice are considered. This result used for analysis of orientational ordering models, including modulation structure and discrete orientational glass.

Unconventional orientational glass transitions in symmetrical difluorotetrachloroethane

1994 ◽  
Vol 6 (35) ◽  
pp. 6947-6964 ◽  
Author(s):  
J K Kruger ◽  
J Schreiber ◽  
R Jimenez ◽  
K -P Bohn ◽  
F Smutny ◽  
...  
Keyword(s):  
Glass Transitions ◽  
Orientational Glass

Discrete nature of the orientational glass ordering inNa1−xKxCN

1997 ◽  
Vol 56 (10) ◽  
pp. R5709-R5712 ◽  
Author(s):  
B. Zalar ◽  
R. Blinc ◽  
W. Albert ◽  
J. Petersson
Keyword(s):  
Orientational Glass ◽  
Discrete Nature

Numerical study of random lasing in three dimensional amplifying disordered media

2012 ◽  
Vol 285 (6) ◽  
pp. 1314-1322 ◽  
Author(s):  
Abbas Ghasempour Ardakani ◽  
Ali Reza Bahrampour ◽  
Seyed Mohammad Mahdavi ◽  
Mojtaba Golshani Gharyeh Ali
Keyword(s):  
Numerical Study ◽  
Three Dimensional ◽  
Disordered Media ◽  
Random Lasing
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