genParity() [1/2]

Tensor< 4 > syten::MPS::Lat::genParity	(	Basis const &	mpo_basis,
		Basis const &	site_basis
	)

Generates a parity tensor \( p \) with diagonal entries 1 for states with even fermion number and -1 for states with odd fermion number.

Requires correct labelling of the sectors as fermionic using Fermionic.

References syten::MPS::genMPOId(), syten::minus_on_swap(), syten::MPS::Operator::rIdx, and syten::MPS::Operator::uIdx.

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