expectation_rec()

Tensor< 3 > syten::BTT::expectation_rec	(	const State::Ptr	aptr,
		const Operator::Ptr	optr,
		const State::Ptr	bptr,
		bool const	cache
	)

Returns the partial contraction of tensors below (and including) the supplied pointers.

The first pointer is not complex conjugated, the second pointer is complex conjugated.

References syten::BTT::Operator::aIdx, syten::BTT::State::aIdx, syten::BTT::Operator::bIdx, syten::BTT::State::bIdx, syten::BTT::Operator::dIdx, syten::genCombinator(), syten::genSplit(), syten::BTT::State::pIdx, syten::BTT::Operator::rIdx, syten::BTT::State::rIdx, syten::split(), SYTEN_ASSERT_DEBUG, and syten::BTT::Operator::uIdx.

Referenced by expectation(), and syten::BTT::State::load().

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