Arbitrary accuracy iterative quantum phase estimation algorithm using a single ancillary qubit: A two-qubit benchmark

Journal Article · Sat Sep 15 00:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.76.030306· OSTI ID:21015896

Dobsicek, Miroslav ^[1]; Johansson, Goeran; Shumeiko, Vitaly; Wendin, Goeran ^[1]

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1. Microtechnology and Nanoscience, MC2, Chalmers, S-412 96 Goeteborg (Sweden)

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 multiqubit 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 seven bits of precision is obtainable, even with very limited gate accuracies.

• OSTI ID: 21015896
• Journal Information: Physical Review. A, Vol. 76, Issue 3; Other Information: DOI: 10.1103/PhysRevA.76.030306; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALGORITHMS
BENCHMARKS
ITERATIVE METHODS
LOGIC CIRCUITS
QUANTUM MECHANICS
QUBITS
SUPERCONDUCTIVITY