Shulga, K.V., Yang, P., Fedorov, G.P., Fistul, M.V., Weides, M. and Ustinov, A.V. (2017) Observation of a collective mode of an array of transmon qubits. JETP Letters, 105(1), pp. 47-50. (doi: 10.1134/S0021364017010143)
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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.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Weides, Professor Martin |
| Authors: | Shulga, K.V., Yang, P., Fedorov, G.P., Fistul, M.V., Weides, M., and Ustinov, A.V. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | JETP Letters |
| Publisher: | Springer |
| ISSN: | 0021-3640 |
| ISSN (Online): | 1090-6487 |
| Published Online: | 21 April 2017 |
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