Source code for nifty8.operators.partial_conjugate
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# 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.
#
# 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.
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# Copyright(C) 2013-2019 Max-Planck-Society
# Authors: Philipp Frank
#
# NIFTy is being developed at the Max-Planck-Institut fuer Astrophysik.
from ..multi_domain import MultiDomain
from ..multi_field import MultiField
from .endomorphic_operator import EndomorphicOperator
[docs]
class PartialConjugate(EndomorphicOperator):
"""Perform partial conjugation of a :class:`MultiField`
Parameters
----------
domain : MultiDomain
The operator's input domain and output target
conjugation_keys : iterable of string
The keys of the :class:`MultiField` for which complex conjugation
should be performed.
"""
[docs]
def __init__(self, domain, conjugation_keys):
if not isinstance(domain, MultiDomain):
raise ValueError("MultiDomain expected!")
indom = (key in domain.keys() for key in conjugation_keys)
if sum(indom) != len(conjugation_keys):
raise ValueError("conjugation_keys not in domain!")
self._domain = domain
self._conjugation_keys = conjugation_keys
self._capabilities = self._all_ops
[docs]
def apply(self, x, mode):
self._check_input(x, mode)
x = x.to_dict()
for k in self._conjugation_keys:
x[k] = x[k].conjugate()
return MultiField.from_dict(x, self._domain)