Influence of Anharmonic and Frustration Effects on Josephson Phase Qubit Characteristics

Askerzade İ.

CONDENSED MATTER, vol.8, no.20, pp.1-8, 2023 (ESCI)

  • Publication Type: Article / Article
  • Volume: 8 Issue: 20
  • Publication Date: 2023
  • Doi Number: 10.3390/condmat8010020
  • Journal Name: CONDENSED MATTER
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus, INSPEC, Directory of Open Access Journals
  • Page Numbers: pp.1-8
  • Ankara University Affiliated: Yes

Abstract

This study is devoted to the investigation of the Josephson phase qubit spectrum considering the anharmonic current-phase relation of the junction. The change in energy difference in the spectrum of phase qubits based on single-band/multiband Josephson junctions is also analyzed. It was shown that the presence of the anharmonic term in the current-phase relation and frustration effects in the junction electrodes leads to changing effective plasma frequencies in the different cases and results in an energy spectrum.