local_expectation() [1/2]

std::pair< std::vector< SDef >, SDef > syten::MPS::local_expectation	(	Lattice const &	lat,
		State const &	a,
		State const &	b,
		std::string const &	id,
		bool const	cache,
		bool const	no_normalise
	)

Computes the expectation value on each site for id.

References std::vector< T >::back(), syten::MPS::Operator::dIdx, syten::genSplit(), syten::MPS::Operator::lIdx, syten::MPS::State::lIdx, syten::MPS::State::maybeCache(), std::vector< T >::push_back(), syten::MPS::Operator::rIdx, syten::MPS::State::rIdx, syten::MPS::State::size(), SYTEN_ASSERT, syten::MPS::Operator::uIdx, and syten::MPS::State::uIdx.

Referenced by syten::Pyten::init_mp_proj_pur(), syten::Pyten::init_mps(), and local_expectation().

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