搜索结果: 1-15 共查到“数学物理 Diffusion”相关记录17条 . 查询时间(0.592 秒)
Anisotropic diffusion in continuum relaxation of stepped crystal surfaces
Anisotropic diffusion continuum relaxation stepped crystal surfaces
2015/10/16
We study the continuum limit in 2+1 dimensions of nanoscale anisotropic diffusion processes on crystal surfaces relaxing to become flat below roughening. Our main result is a continuum law for the sur...
A Second Order Finite Difference-Spectral Method for Space Fractional Diffusion Equation
A Second Order Finite Difference-Spectral Method Space Fractional Diffusion Equation
2012/8/7
A high order finite difference-spectral method is derived for solving space fractional diffusion equations, by combining the second order finite difference method in time and the spectral Galerkin met...
Capturing correlations in chaotic diffusion by approximation methods
Capturing correlations chaotic diffusion approximation methods
2011/9/21
Abstract: We investigate three different methods for systematically approximating the diffusion coefficient of a deterministic random walk on the line which contains dynamical correlations that change...
Diffusion for a quantum particle coupled to phonons in $d\geq 3$
quantum particle phonons Mathematical Physics
2011/9/20
Abstract: We prove diffusion for a quantum particle coupled to a field of bosons (phonons or photons). The importance of this result lies in the fact that our model is fully Hamiltonian and randomness...
A Model connecting Quantum, Diffusion, Soliton, and Periodic Localized States under Brownian motion
connecting Quantum Diffusion Soliton Brownian motion Mesoscale and Nanoscale Physics
2011/10/9
Abstract: We propose new equations of motion under the theory of the Brownian motion to connect the states of quantum, diffusion, soliton, and periodic localization. The new equations are nothing but ...
Reaction-diffusion front crossing a local defect
Reaction-diffusion Mathematical Physics local defect
2011/7/26
Abstract: The interaction of a Zeldovich reaction-diffusion front with a localized defect is studied numerically and analytically. For the analysis, we start from conservation laws and develop simple ...
On the stability of some exact solutions to the generalized convection-reaction-diffusion equation
convection-reaction-diffusion equation exact solutions
2010/4/21
Stability of a set of travelling wave solutions to the hyperbolic generalization of the convection-reaction-diffusion equation is studied by means of the qualitative methods and numerical simulation.
Green function for a non-Markovian Fokker-Planck equation: Comb-model and anomalous diffusion
Anomalous diffusion Comb-model Fokker-Planck
2010/7/5
We investigate solutions, by using the Green function approach, for a system governed by a non-Markovian Fokker-Planck equation and subjected to a Comb structure. This structure consists of the axis o...
Functional Separable Solutions to Nonlinear Diffusion Equations by Group Foliation Method
group foliation method functional separation of variable nonlinear diffusion
equation symmetry group
2007/8/15
2007Vol.47No.2pp.193-199DOI:
Functional Separable Solutions to Nonlinear Diffusion Equations by Group Foliation Method
HU Jia-Yi,1,2,3 QU Chang-Zheng,1,2 and YIN Hui4
1 ...
Conditional Symmetries and Solutions to a Class of Nonlinear
Diffusion-Convection Equations
symmetry nonlinear diffusion--convection
equation conditional symmetry exact solution
2007/8/15
2006Vol.46No.4pp.668-674DOI:
Conditional Symmetries and Solutions to a Class of Nonlinear
Diffusion-Convection Equations
JI Li-Na1,2,3 and QU Chang-Zheng1,2
1 Center for...
The Exact Solution of Milburn Equation Without Diffusion
Approximation for the Two-Model Raman Coupled Model
atom-field interaction intrinsic decoherence
2007/8/15
2002Vol.37No.6pp.733-738DOI:
The Exact Solution of Milburn Equation Without Diffusion
Approximation for the Two-Model Raman Coupled Model
XU Jing-Bo, ZOU Xu-Bo, GAO Xiao-Chun, and...
2006Vol.45No.4pp.761-764DOI:
Turing Patterns in a Reaction-Diffusion System
WU Yan-Ning, WANG Ping-Jian, HOU Chun-Ju, LIU Chang-Song, and ZHU Zhen-Gang
Key Laboratory of...
Potential Symmetries to a System of Three-Component
Nonlinear Diffusion Equations
Lie point symmetry potential symmetry nonlinear
diffusion equation group-invariant solutions
2007/8/15
2006Vol.45No.2pp.193-198DOI:
Potential Symmetries to a System of Three-Component
Nonlinear Diffusion Equations
XUE Chun-Rong1,2 and QU Chang-Zheng1,2
1 Center for Nonlin...
Study of Pre-equilibrium Fission Based on Diffusion Model
pre-equilibrium fission diffusion model fissile nucleus un-fissile nucleus
2007/8/15
2006Vol.45No.2pp.325-331DOI:
Study of Pre-equilibrium Fission Based on Diffusion Model
SUN Xiao-Jun1,2 and ZHANG Jing-Shang2
1 College of Physics and Information Techno...
Conditional Symmetry Groups of Nonlinear Diffusion Equations
with x-Dependent Convection and Absorption
symmetry group sign-invariant nonlinear diffusion
equation exact solution
2007/8/15
2004Vol.41No.2pp.231-234DOI:
Conditional Symmetry Groups of Nonlinear Diffusion Equations
with x-Dependent Convection and Absorption
QU Chang-Zheng and ZHANG Shun-Li
Dep...