overlap() [2/2]

SDef syten::T3N::overlap	(	State const &	b,
		State const &	a
	)

Returns the overlap \( \langle a | b \rangle \) between two states.

Parameters

a	the first state, to be complex-conjugated
b	the second state, not complex conjugated

Returns

the overlap \( \langle a | b \rangle \)

References syten::T3N::State::cache_flag, syten::STensorImpl::ferm_trace(), overlap_rec(), and syten::T3N::Tree::Tree< T >::Root.

Referenced by normSqd(), and variance().

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