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Create a singlet UCCSD generator for a system with n_electrons
openfermion.circuits.uccsd_singlet_generator( packed_amplitudes, n_qubits, n_electrons, anti_hermitian=True )
This function generates a FermionOperator for a UCCSD generator designed to act on a single reference state consisting of n_qubits spin orbitals and n_electrons electrons, that is a spin singlet operator, meaning it conserves spin.
Generator of the UCCSD operator that builds the UCCSD wavefunction.