Arbitrary accuracy iterative phase estimation algorithm as a two qubit benchmark

Details Arbitrary accuracy iterative phase estimation algorithm as a two qubit benchmark Arbitrary accuracy iterative phase estimation algorithm as a two qubit benchmark

2006-10-25

arxiv.org/abs/quant-ph/0610214v3

Physics

Quantum Physics

Improved error model. Dephasing is considered

Scientific paper

10.1103/PhysRevA.76.030306

We discuss the implementation of an iterative quantum phase estimation algorithm, with a single ancillary qubit. We suggest using this algorithm as a benchmark for multi-qubit implementations. Furthermore we describe in detail the smallest possible realization, using only two qubits, and exemplify with a superconducting circuit. We discuss the robustness of the algorithm in the presence of gate errors, and show that 7 bits of precision is obtainable, even with very limited gate accuracies.

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