Results 1 to 10 of about 1,885,669 (194)
Anomalous Fluctuations of Directed Polymers in Random Media
A systematic analysis of large scale fluctuations in the low temperature pinned phase of a directed polymer in a random potential is described. These fluctuations come from rare regions with nearly degenerate ``ground states''.
A. J. McKane +46 more
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Nonclassical Particle Transport in 1-D Random Periodic Media [PDF]
We investigate the accuracy of the recently proposed nonclassical transport equation. This equation contains an extra independent variable compared to the classical transport equation (the path-length $s$), and models particle transport taking place in ...
Krycki, Kai +2 more
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Solute transport in aquifers with evolving scale heterogeneity
Transport processes in groundwater systems with spatially heterogeneous properties often exhibit anomalous behavior. Using first-order approximations in velocity fluctuations we show that anomalous superdiffusive behavior may result if velocity fields ...
Suciu N. +6 more
doaj +1 more source
This study aims to determine the effectiveness of the development of concrete-based learning media "RANDOM WORD BOARD" on the thematic learning system class VBSDN 2 Padokan. The study was conducted based on the current curriculum that uses the concept of
Sukadari Sukadari
doaj +1 more source
Interacting Arrays of Steps and Lines in Random Media
The phase diagram of two interacting planar arrays of directed lines in random media is obtained by a renormalization group analysis. The results are discussed in the contexts of the roughening of reconstructed crystal surfaces, and the pinning of flux ...
D. Carpentier +21 more
core +1 more source
Quantum boomeranglike effect of wave packets in random media [PDF]
We unveil an original manifestation of Anderson localization for wave packets launched with a finite average velocity: after an initial ballistic motion, the center of mass of the wave packet experiences a retroreflection and slowly returns to its ...
Cherroret, Nicolas +2 more
core +3 more sources
Superfluid $^3$He in globally isotropic random media
Recent theoretical and experimental studies of superfluid $^3$He in aerogels with a global anisotropy, e.g., due to an external stress, have definitely shown that the A-like phase with an equal spin pairing (ESP) in such aerogel samples is in the ABM (or,
A. A. Abrikosov +13 more
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Radiation Transport in Random Media With Large Fluctuations
Neutral particle transport in media exhibiting large and complex material property spatial variation is modeled by representing cross sections as lognormal random functions of space and generated through a nonlinear memory-less transformation of a ...
Olson Aaron, Prinja Anil, Franke Brian
doaj +1 more source
Angularly resolved reflectance from random and aligned semi-infinite media
The angularly resolved reflectance from semi-infinite turbid media is investigated using the Monte Carlo method. Turbid media with random and aligned microstructures are considered.
A. Kienle, F. Foschum
doaj +1 more source
We report a quantum field theoretical description of light transport and random lasing. The Bethe-Salpeter equation is solved including maximally crossed diagrams and non-elastic scattering. This is the first theoretical framework that combines so called
Frank, Regine, Lubatsch, Andreas
core +1 more source

