Skip to main content
Log in

Observation of a collective mode of an array of transmon qubits

JETP Letters Aims and scope Submit manuscript

Abstract

Arrays of transmon qubits coupled to a λ/2 superconducting coplanar waveguide resonator have been studied by microwave spectroscopy. The emergence of a collective mode has been discovered for a cluster of N > 5 qubits, whose coupling constant to the electromagnetic field in the resonator is √N times greater compared to a single qubit. In addition, the emergence of collective multiphoton transitions exciting higher levels of a qubit cluster has been demonstrated and the interaction of an individual qubit with such a cluster has been investigated.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

References

  1. J. Clarke and F. K. Wilhelm, Nature 453, 1031 (2008).

    Article  ADS  Google Scholar 

  2. T. M. Y. Koch, J. Gambetta, A. A. Houck, D. I. Schuster, J. Majer, A. Blais, M. H. Devoret, S. M. Girvin, and R. J. Schoelkopf, Phys. Rev. A 76, 042319 (2007).

    Article  ADS  Google Scholar 

  3. P. Macha, G. Oelsner, J.-M. Reiner, M. Marthaler, S. Andre, G. Schon, U. Hubner, H.-G. Meyer, E. Ileichev, and A. V. Ustinov, Nat. Commun. 5, 5146 (2014).

    Article  ADS  Google Scholar 

  4. A. S. Averkin, A. Karpov, K. Shulga, E. Glushkov, N. Abramov, U. Huebner, E. Ileichev, and A. V. Ustinov, Rev. Sci. Instrum. 85, 104702 (2014).

    Article  ADS  Google Scholar 

  5. P. A. Volkov and M. V. Fistul, Phys. Rev. B 89, 054507 (2014).

    Article  ADS  Google Scholar 

  6. R. H. Dicke, Phys. Rev. 93, 99 (1954).

    Article  ADS  Google Scholar 

  7. J. M. Fink, R. Bianchetti, M. Baur, M. Goppl, L. Steffen, S. Filipp, P. J. Leek, A. Blais, and A. Wallraff, Phys. Rev. Lett. 103, 083601 (2009).

    Article  ADS  Google Scholar 

  8. M. Tavis and F. W. Cummings, Phys. Rev. 170, 379 (1968).

    Article  ADS  Google Scholar 

  9. E. T. Jaynes and F. W. Cummings, Proc. IEEE 51, 89 (1963).

    Article  Google Scholar 

  10. J. Braumuller, J. Cramer, S. Schlor, H. Rotzinger, L. Radtke, A. Lukashenko, P. Yang, S. T. Skacel, S. Probst, M. Marthaler, L. Guo, A. V. Ustinov, and M. Weides, Phys. Rev. B 91, 054523 (2015).

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to K. V. Shulga.

Additional information

Original Russian Text © K.V. Shulga, P. Yang, G.P. Fedorov, M.V. Fistul, M. Weides, A.V. Ustinov, 2017, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2017, Vol. 105, No. 1, pp. 38–42.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Shulga, K.V., Yang, P., Fedorov, G.P. et al. Observation of a collective mode of an array of transmon qubits. Jetp Lett. 105, 47–50 (2017). https://doi.org/10.1134/S0021364017010143

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0021364017010143

Navigation