qutip/core/_brtools.pxd
#cython: language_level=3
from qutip.core.cy.qobjevo cimport QobjEvo
from qutip.core.cy.coefficient cimport Coefficient
from qutip.core.data cimport Data
cdef class SpectraCoefficient(Coefficient):
cdef Coefficient coeff_t
cdef Coefficient coeff_w
cdef double w
cpdef Data matmul_var_data(Data left, Data right, int transleft, int transright)
cdef class _EigenBasisTransform:
cdef:
QobjEvo oper
int size
readonly bint isconstant
double _t
object _eigvals # np.ndarray
Data _evecs, _evecs_inv
cpdef object eigenvalues(self, double t)
cpdef Data evecs(self, double t)
cpdef Data to_eigbasis(self, double t, Data fock)
cpdef Data from_eigbasis(self, double t, Data eig)
cdef Data _inv(self, double t)
cdef void _compute_eigen(self, double t) except *
cdef Data _S_converter(self, double t)
cdef Data _S_converter_inverse(self, double t)