Arbitrary accuracy iterative phase estimation algorithm as a two qubit benchmark
Quantum Physics
2010-03-26 v3 Mesoscale and Nanoscale Physics
Superconductivity
General Relativity and Quantum Cosmology
Mathematical Physics
math.MP
Abstract
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.
Cite
@article{arxiv.quant-ph/0610214,
title = {Arbitrary accuracy iterative phase estimation algorithm as a two qubit benchmark},
author = {M. Dobsicek and G. Johansson and V. S. Shumeiko and G. Wendin},
journal= {arXiv preprint arXiv:quant-ph/0610214},
year = {2010}
}
Comments
Improved error model. Dephasing is considered