left_complement()

Tensor< 3 > syten::MPS::left_complement	(	Tensor< 3 >	a,
		Basis const &	local,
		Basis const &	left
	)

Constructs the left complement to an existing left-normalised tensor a accessing the remaining parts of the full right space.

Parameters

[in]	a	existing left-normalised tensor
[in]	local	complete local physical basis, incoming
[in]	left	left basis, outgoing

References syten::Basis::adjointed(), syten::DenseTensor< rank, Scalar >::dim(), syten::Basis::dir, syten::BasisMap::elementSize(), syten::Basis::flippedAdjointed(), syten::genIINode(), syten::genSplit(), syten::Tensor< rank >::getBasisMap(), syten::Inc, syten::MPS::State::lIdx, std::move(), syten::Out, syten::QR::qr(), syten::Tensor< rank >::reduce(), syten::MPS::State::rIdx, SYTEN_ASSERT_MSG, SYTEN_MPS_EXPECT_ORDER, syten::MPS::State::uIdx, and syten::YesNo< T >::y().

Referenced by error_estimate_2svariance(), syten::MPS::DMRG::Worker::sweepLeft2sVar(), and syten::MPS::DMRG::Worker::sweepRight2sVar().

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