Experimental Monte Carlo Quantum Process Certification

Details Experimental Monte Carlo Quantum Process Certification Experimental Monte Carlo Quantum Process Certification

2012-02-23

arxiv.org/abs/1202.5196v1

Physics

Quantum Physics

Scientific paper

Experimental implementations of quantum information processing have now reached a level of sophistication where quantum process tomography is impractical. The number of experimental settings as well as the computational cost of the data post-processing now translates to days of effort to characterize even experiments with as few as 8 qubits. Recently a more practical approach to determine the fidelity of an experimental quantum process has been proposed, where the experimental data is compared directly to an ideal process using Monte Carlo sampling. Here we present an experimental implementation of this scheme in a circuit quantum electrodynamics setup to determine the fidelity of two qubit gates, such as the cphase and the cnot gate, and three qubit gates, such as the Toffoli gate and two sequential cphase gates.

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