Showing 1–1 of 1 results for author: Hime, T

Flux Qubits and Readout Device with Two Independent Flux Lines

Authors: B. L. T. Plourde, T. L. Robertson, P. A. Reichardt, T. Hime, S. Linzen, C. -E. Wu, John Clarke

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 ex… ▽ More 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. △ Less

Submitted 29 January, 2005; v1 submitted 27 January, 2005; originally announced January 2005.

Comments: 5 pages, 4 figures, higher quality figures available upon request. Submitted to PRL