Flux qubits and readout device with two independent flux lines

Britton Plourde, T. L. Robertson, P. A. Reichardt, T. Hime, S. Linzen, C. E. Wu, John Clarke

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

We report measurements on two superconducting flux qubits coupled to a readout superconducting quantum interference device (SQUID). Two on-chip flux bias lines allow independent flux control of any two of the three elements, as illustrated by a two-dimensional qubit flux map. The application of microwaves yields a frequency-flux dispersion curve for 1- and 2-photon driving of the single-qubit excited state, and coherent manipulation of the single-qubit state results in Rabi oscillations and Ramsey fringes. This architecture should be scalable to many qubits and SQUIDs on a single chip.

Original languageEnglish (US)
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number6
DOIs
StatePublished - Aug 1 2005

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readout
Fluxes
SQUIDs
chips
Excited states
manipulators
Photons
Microwaves
interference
microwaves
oscillations
photons
curves
excitation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Flux qubits and readout device with two independent flux lines. / Plourde, Britton; Robertson, T. L.; Reichardt, P. A.; Hime, T.; Linzen, S.; Wu, C. E.; Clarke, John.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 72, No. 6, 01.08.2005.

Research output: Contribution to journalArticle

Plourde, Britton ; Robertson, T. L. ; Reichardt, P. A. ; Hime, T. ; Linzen, S. ; Wu, C. E. ; Clarke, John. / Flux qubits and readout device with two independent flux lines. In: Physical Review B - Condensed Matter and Materials Physics. 2005 ; Vol. 72, No. 6.
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