Universal gate-set for trapped-ion qubits using a narrow linewidth diode laser

Nitzan Akerman, Nir Navon, Shlomi Kotler, Yinnon Glickman, Roee Ozeri

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

We report on the implementation of a high fidelity universal gate-set on optical qubits based on trapped 88Sr+ ions for the purpose of quantum information processing. All coherent operations were performed using a narrow linewidth diode laser. We employed a master-slave configuration for the laser, where an ultra low expansion glass Fabry-Perot cavity is used as a stable reference as well as a spectral filter. We characterized the laser spectrum using the ions with a modified Ramsey sequence which eliminated the affect of the magnetic field noise. We demonstrated high fidelity single qubit gates with individual addressing, based on inhomogeneous micromotion, on a two-ion chain as well as the Mølmer-Sørensen two-qubit entangling gate.

Original languageAmerican English
Article number113060
JournalNew Journal of Physics
Volume17
Issue number11
DOIs
StatePublished - 27 Nov 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.

Keywords

  • quantum information
  • trapped ions
  • universal gate set

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