Fig. 9: Error analysis. | npj Quantum Information

Fig. 9: Error analysis.

From: Experimental characterization of the energetics of quantum logic gates

Fig. 9

Absolute error \(| {p}_{{\rm{theo}}}-{p}_{\exp }|\) accounting for the difference between theoretical and experimental joint probabilities \(p({E}_{{1}_{A}{\phi }_{B}}^{{\rm{in}}},{E}_{{1}_{A}{\phi }_{B}}^{{\rm{fin}}})\) as a function of the rescaled time ωLt. The blue dots report the values for \(p({E}_{{1}_{A}{0}_{B}}^{{\rm{in}}},{E}_{{1}_{A}{0}_{B}}^{{\rm{fin}}})\), the red circles those for \(p({E}_{{1}_{A}{1}_{B}}^{{\rm{in}}},{E}_{{1}_{A}{0}_{B}}^{{\rm{fin}}})\), the black crosses and the green diamond label the values for \(p({E}_{{1}_{A}{0}_{B}}^{{\rm{in}}},{E}_{{1}_{A}{1}_{B}}^{{\rm{fin}}})\) and \(p({E}_{{1}_{A}{1}_{B}}^{{\rm{in}}},{E}_{{1}_{A}{1}_{B}}^{{\rm{fin}}})\), respectively. As in Fig. 2, we have taken ωint/ωL = 5. The initial state ρ0 is given by Eq. (9) and \({\left|V\right\rangle }_{k}=(1,0)\), \({\left|H\right\rangle }_{k}=(0,1)\) for both qubits k = A and B.

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