NAME
Photonic::LE::NP::Haydock
VERSION
version 0.023
COPYRIGHT NOTICE
Photonic - A perl package for calculations on photonics and metamaterials.
Copyright (C) 2016 by W. Luis Mochán
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
mochan@fis.unam.mx
Instituto de Ciencias Físicas, UNAM
Apartado Postal 48-3
62251 Cuernavaca, Morelos
México
VERSION
version 0.023
SYNOPSIS
use Photonic::LE::NP::Haydock;
my $nr=Photonic::LE::NP::Haydock->new(epsilon=>$epsilon,
geometry=>$geometry);
$nr->iterate;
say $nr->iteration;
say $nr->current_a;
say $nr->next_b2;
my $state=$nr->next_state;
DESCRIPTION
Implements calculation of Haydock coefficients and Haydock states for the calculation of the non retarded dielectric function of arbitrary periodic many component systems in arbitrary number of dimentions. One Haydock coefficient at a time. The starting state is homogenous.
Warning: this module is fragile and depends on a particular initial state.
Consumes Photonic::Roles::Haydock, Photonic::Roles::EpsFromGeometry - please see those for attributes.
ATTRIBUTES SUPPLIED FOR ROLE
These are provided for roles:
geometry
A "GeometryG0" in Photonic::Types object defining the geometry of the system, the characteristic function and the direction of the G=0 vector. Required.
B ndims dims r G GNorm L scale f
Accessors handled by geometry (see Photonic::Geometry)
applyOperator
Apply the 'Hamiltonian' operator to state $psi_G in reciprocal space. State is nx:ny... The operator is the longitudinal projection of the dielectric function
innerProduct
Returns the inner (Euclidean) product between states $left and $right.
magnitude
Returns the magnitude of state $psi_G in reciprocal space by taking the square root of the inner product of the state with itself.
changesign
Returns zero, as there is no need to change sign.
complexCoeffs
Haydock coefficients are complex