Fig. 5: Comparison of coherence limits of GHZ and W states via compilation to two- or three-qubit gates. | npj Quantum Information

Fig. 5: Comparison of coherence limits of GHZ and W states via compilation to two- or three-qubit gates.

From: Extensive characterization and implementation of a family of three-qubit gates at the coherence limit

Fig. 5

a Coherence limits of GHZ state preparation using two-qubit CZ gates and the three-qubit CCZS gate. The two-qubit decomposition is given in the inset, whereas the preparation using the CCZS gate is shown in Fig. 4b. Similarly, in b, we compare the coherence limits of generating the W state using an optimal two-qubit decomposition using the CZ gate and the qutrit version of the CCZS gate described in the main text and shown in Fig. 4d.

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