Iterative quantum phase estimation on an IBM quantum processor

N. A. Zhuravlev, I. I. Beterov

Research output: Contribution to journalArticlepeer-review

Abstract

An elementary algorithm of quantum phase estimation based on the modified Kitaev algorithm is implemented on two qubits of an IBM quantum processor. This algorithm includes adiabatic preparation of the initial state, controlled phase shift with allowance for the results of previous measurements of qubit states, and single measurement of the qubit quantum state in order to obtain each significant bit of the measured phase. Classical error correction is applied to determine the correct sequence of bits, which makes it possible to eliminate the influence of limited accuracy of two-qubit gates.

Original languageEnglish
Pages (from-to)506-510
Number of pages5
JournalQuantum Electronics
Volume51
Issue number6
DOIs
Publication statusPublished - Jun 2021

Keywords

  • Modified Kitaev algorithm
  • Quantum phase estimation
  • Quantum processor
  • Two-qubit gate

OECD FOS+WOS

  • 2.02 ELECTRICAL ENG, ELECTRONIC ENG
  • 2.05 MATERIALS ENGINEERING
  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY
  • 1.03.UB PHYSICS, APPLIED

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