Spectroscopy of three strongly coupled flux qubits

Antti Niskanen (Corresponding Author), K. Harrabi, F. Yoshihara, Y. Nakamura, J.S. Tsai

Research output: Contribution to journalArticleScientificpeer-review

28 Citations (Scopus)

Abstract

We have carried out spectroscopic measurements of a system of three strongly coupled four-junction flux qubits. The samples studied cover a wide range of parameters with the coupling energy between neighboring qubits varying between
0.75 GHz and 6.05 GHz. The observed complicated spectra agree well with eight-level theory. The experiments are relevant for the realization of a tunable coupling between qubits.
Original languageEnglish
Article number220503
Number of pages4
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume74
Issue number22
DOIs
Publication statusPublished - 2006
MoE publication typeA1 Journal article-refereed

Fingerprint

Spectroscopy
Fluxes
spectroscopy
Experiments
energy

Keywords

  • quantum computing
  • antiferromagnetism
  • SQUID
  • Josephson junction
  • qubits

Cite this

Niskanen, A., Harrabi, K., Yoshihara, F., Nakamura, Y., & Tsai, J. S. (2006). Spectroscopy of three strongly coupled flux qubits. Physical Review B: Condensed Matter and Materials Physics, 74(22), [220503 ]. https://doi.org/10.1103/PhysRevB.74.220503
Niskanen, Antti ; Harrabi, K. ; Yoshihara, F. ; Nakamura, Y. ; Tsai, J.S. / Spectroscopy of three strongly coupled flux qubits. In: Physical Review B: Condensed Matter and Materials Physics. 2006 ; Vol. 74, No. 22.
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Niskanen, A, Harrabi, K, Yoshihara, F, Nakamura, Y & Tsai, JS 2006, 'Spectroscopy of three strongly coupled flux qubits', Physical Review B: Condensed Matter and Materials Physics, vol. 74, no. 22, 220503 . https://doi.org/10.1103/PhysRevB.74.220503

Spectroscopy of three strongly coupled flux qubits. / Niskanen, Antti (Corresponding Author); Harrabi, K.; Yoshihara, F.; Nakamura, Y.; Tsai, J.S.

In: Physical Review B: Condensed Matter and Materials Physics, Vol. 74, No. 22, 220503 , 2006.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Niskanen, Antti

AU - Harrabi, K.

AU - Yoshihara, F.

AU - Nakamura, Y.

AU - Tsai, J.S.

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KW - antiferromagnetism

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KW - Josephson junction

KW - qubits

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