0610214v3

related topics
{qubit, qubits, gate}
{algorithm, log, probability}
{state, phys, rev}
{time, decoherence, evolution}
{spin, pulse, spins}
{error, code, errors}
{measurement, state, measurements}
{phase, path, phys}
{cos, sin, state}
{energy, state, states}
{cavity, atom, atoms}
{state, algorithm, problem}
{time, wave, function}
{trap, ion, state}
{key, protocol, security}

Arbitrary accuracy iterative phase estimation algorithm as a two qubit benchmark

M. Dobsicek, G. Johansson, V. S. Shumeiko, G. Wendin

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.

oai_identifier:
oai:arXiv.org:quant-ph/0610214
categories:
quant-ph cond-mat.mes-hall cond-mat.supr-con gr-qc math-ph math.MP
comments:
Improved error model. Dephasing is considered
doi:
10.1103/PhysRevA.76.030306
arxiv_id:
quant-ph/0610214
created:
2006-10-25
updated:
2007-07-12

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