Articles with "classical diffusion" as a keyword



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The simulation by using bivariate splines for solving two dimensional non-classical diffusion problem

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Published in 2018 at "Cluster Computing"

DOI: 10.1007/s10586-017-1636-3

Abstract: In this paper, a high order method using bivariate spline finite elements on domains defined by NURBS is proposed for solving two dimensional non-classical diffusion problem. Bivariate spline proper subspace of $$S_4^{2,3} (\Delta _{mn}^{(2)} )$$S42,3(Δmn(2))… read more here.

Keywords: dimensional non; solving two; two dimensional; non classical ... See more keywords
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Inflation is always semi-classical: diffusion domination overproduces Primordial Black Holes

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Published in 2021 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2021/12/027

Abstract: We use the Hamilton-Jacobi (H-J) formulation of stochastic inflation to describe the evolution of the inflaton during a period of Ultra-Slow Roll (USR), taking into account the field's velocity and its gravitational backreaction. We demonstrate… read more here.

Keywords: inflaton; primordial black; black holes; diffusion ... See more keywords
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Control of quantum localization and classical diffusion in laser-kicked molecular rotors

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Published in 2017 at "Physical Review A"

DOI: 10.1103/physreva.95.013401

Abstract: We experimentally study a system of quantum kicked rotors - an ensemble of diatomic molecules exposed to a periodic sequence of ultrashort laser pulses. In the regime, where the underlying classical dynamics is chaotic, we… read more here.

Keywords: laser; control quantum; quantum localization; localization ... See more keywords