coarse_grain() [2/2]

Operator syten::MPS::coarse_grain	(	Operator const &	op,
		std::ostream &	out,
		bool	collapse
	)

Coarse-grains the operator op, returning a new operator of half the size.

Prints a . into out on completion of every site. If collapse is true, all states with the same quantum numbers are collapsed into a single state.

References syten::MPS::Operator::dIdx, syten::MPS::Operator::dInt, std::flush(), syten::genCombinator(), syten::genFuse(), syten::genSplit(), syten::MPS::Operator::lIdx, syten::MPS::Operator::lInt, syten::MPS::Operator::rIdx, syten::MPS::Operator::rInt, SYTEN_ASSERT, syten::MPS::Operator::uIdx, and syten::MPS::Operator::uInt.

Referenced by coarse_grain(), and syten::Pyten::init_mp_mg().

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