Homogenization of the Schrödinger equation and effective mass theorems
G Allaire, A Piatnitski - Communications in mathematical physics, 2005 - Springer
We study the homogenization of a Schrödinger equation with a large periodic potential:
denoting by∈ the period, the potential is scaled as∈− 2. We obtain a rigorous derivation of …
denoting by∈ the period, the potential is scaled as∈− 2. We obtain a rigorous derivation of …
Bloch waves in bubbly crystal near the first band gap: a high-frequency homogenization approach
This paper is concerned with the high-frequency homogenization of bubbly phononic
crystals. It is a follow-up of the work [H. Ammari et al., J. Differential Equations, 263 (2017) …
crystals. It is a follow-up of the work [H. Ammari et al., J. Differential Equations, 263 (2017) …
Homogenization of nonlinear reaction-diffusion equation with a large reaction term
G Allaire, A Piatnitski - ANNALI DELL'UNIVERSITA'DI FERRARA, 2010 - Springer
This paper deals with the homogenization of a second order parabolic operator with a large
nonlinear potential and periodically oscillating coefficients of both spatial and temporal …
nonlinear potential and periodically oscillating coefficients of both spatial and temporal …
Second-order homogenization of periodic Schrödinger operators with highly oscillating potentials
We consider a family of-periodic Schrödinger operators with rapidly oscillating potentials on,
where is a Bravais lattice of, the two-scale potential is-periodic with zero mean with respect …
where is a Bravais lattice of, the two-scale potential is-periodic with zero mean with respect …
Quantum transport in crystals: effective mass theorem and k· p Hamiltonians
L Barletti, N Ben Abdallah - Communications in mathematical physics, 2011 - Springer
In this paper the effective mass approximation and the k· p multi-band models, describing
quantum evolution of electrons in a crystal lattice, are discussed. Electrons are assumed to …
quantum evolution of electrons in a crystal lattice, are discussed. Electrons are assumed to …
Diffractive behavior of the wave equation in periodic media: weak convergence analysis
G Allaire, M Palombaro, J Rauch - Annali di Matematica Pura ed Applicata, 2009 - Springer
We study the homogenization and singular perturbation of the wave equation in a periodic
media for long times of the order of the inverse of the period. We consider initial data that are …
media for long times of the order of the inverse of the period. We consider initial data that are …
Homogenization of periodic non self-adjoint problems with large drift and potential
We consider the homogenization of both the parabolic and eigenvalue problems for a
singularly perturbed convection-diffusion equation in a periodic medium. All coefficients of …
singularly perturbed convection-diffusion equation in a periodic medium. All coefficients of …
Periodic homogenization and effective mass theorems for the Schrödinger equation
The goal of this course is to give an introduction to periodic homogenization theory with an
emphasis on applications to Schrödinger equation. We review the formal method of two …
emphasis on applications to Schrödinger equation. We review the formal method of two …
Effective mass theorems for nonlinear Schrödinger equations
C Sparber - SIAM Journal on Applied Mathematics, 2006 - SIAM
We consider time-dependent nonlinear Schrödinger equations subject to smooth lattice-
periodic potentials plus additional confining potentials, slowly varying on the lattice scale …
periodic potentials plus additional confining potentials, slowly varying on the lattice scale …
Homogenization of dispersive material parameters for Maxwell's equations using a singular value decomposition
D Sjöberg - Multiscale Modeling & Simulation, 2005 - SIAM
We find effective, or homogenized, material parameters for Maxwell's equations when the
microscopic scale becomes small compared to the scale induced by the frequencies of the …
microscopic scale becomes small compared to the scale induced by the frequencies of the …