contract_local_sites()

void syten::MPS::TEBD::contract_local_sites	(	Tensor< 2 > &	contractor,
		Tensor< 4 > const &	current_op,
		Tensor< 4 > const &	current_i,
		bool const	from_left = true
	)

Contracts sites of an MPO into an contractor:

V
<[I]<
V          V             >[I]>      V             V
[CONTR]    -->    | |    [CONTR] -->   [CONTR]
V          V             <[O]<      V             V
<[O]<
V

Parameters

[out]	contractor	the contracter tha will be transformed into a new contractor
[in]	current_op	the current local operator
[in]	current_i	the current identity operator
[in]	from_left	wheter the contractor comes from the left side

Returns

void

References syten::MPS::Operator::dIdx, syten::MPS::Operator::lIdx, syten::MPS::norm(), syten::MPS::Operator::rIdx, and syten::MPS::Operator::uIdx.

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