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environment.py
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environment.py
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#!/usr/bin/env python3
## vi: tabstop=4 shiftwidth=4 softtabstop=4 expandtab
## ---------------------------------------------------------------------
##
## Copyright (C) 2021 by the adcc authors
##
## This file is part of adcc.
##
## adcc 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 3 of the License, or
## (at your option) any later version.
##
## adcc 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 adcc. If not, see <http://www.gnu.org/licenses/>.
##
## ---------------------------------------------------------------------
from adcc import OneParticleOperator, AmplitudeVector
from .matrix import AdcBlock
def block_ph_ph_0_pe(hf, mp, intermediates):
"""
Constructs an :py:class:`AdcBlock` that describes the
linear response coupling to the polarizable environment
from PE via a CIS-like transition density as described
in 10.1021/ct300763v, eq 63. Since the contribution
depends on the input amplitude itself,
a diagonal term cannot be formulated.
"""
op = hf.operators
def apply(ampl):
tdm = OneParticleOperator(mp, is_symmetric=False)
tdm.vo = ampl.ph.transpose()
vpe = op.pe_induction_elec(tdm)
return AmplitudeVector(ph=vpe.ov)
return AdcBlock(apply, 0)
def block_ph_ph_0_pcm(hf, mp, intermediates):
"""
Constructs an :py:class:`AdcBlock` that describes the
linear response coupling to the polarizable environment
from PCM via a CIS-like transition density as described
in 10.1021/ct300763v, eq 63. Since the contribution
depends on the input amplitude itself,
a diagonal term cannot be formulated.
"""
op = hf.operators
def apply(ampl):
tdm = OneParticleOperator(mp, is_symmetric=False)
tdm.vo = ampl.ph.transpose()
vpcm = op.pcm_potential_elec(tdm)
return AmplitudeVector(ph=vpcm.ov)
return AdcBlock(apply, 0)