Naively applies the operator op
to the state a
.
Very costly and not yet implemented, use apply_op_itrunc()
instead.
References syten::MPS::LBOState::dropUnmatched(), syten::Basis::flipped(), syten::genCombinator(), syten::genFuse(), syten::Tensor< rank >::getBasis(), syten::MPS::LBOState::m(), syten::MPS::LBOState::size(), SYTEN_ASSERT_DEBUG, and syten::MPS::LBOState::v().
Referenced by syten::do_apply_op(), syten::MPS::TDVP::Worker::gse_build_krylov_vectors(), syten::MPS::DMRG::Worker::gse_build_krylov_vectors(), and syten::MPS::State::operator*=().