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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2017, Volume 105, Issue 1, Pages 38–42
DOI: https://doi.org/10.7868/S0370274X17010106 (Mi jetpl5159) 		 
This article is cited in 16 scientific papers (total in 16 papers)

QUANTUM INFORMATION SCIENCE

Observation of a collective mode of an array of transmon qubits

K. V. Shulgaabcd, P. Yange, G. P. Fedorovcd, M. V. Fistulfac, M. Weidese, A. V. Ustinoveac

a National Research Technological University MISiS, Moscow, Russia
b Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, Russia
c Russian Quantum Center, Skolkovo, Moscow region, Russia
d Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow region, Russia
e Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe, Germany
f Theoretische Physik III, Ruhr-Universität Bochum, Germany
Full-text PDF (386 kB) Citations (16)
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DOI: https://doi.org/10.7868/S0370274X17010106
Abstract: Arrays of transmon qubits coupled to a $\lambda/2$ 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 $\sqrt{N}$ 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.
Funding agency Grant number
Russian Science Foundation 16-12-00095
Received: 14.11.2016
English version:
Journal of Experimental and Theoretical Physics Letters, 2017, Volume 105, Issue 1, Pages 47–50
DOI: https://doi.org/10.1134/S0021364017010143
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: K. V. Shulga, P. Yang, G. P. Fedorov, M. V. Fistul, M. Weides, A. V. Ustinov, “Observation of a collective mode of an array of transmon qubits”, Pis'ma v Zh. Èksper. Teoret. Fiz., 105:1 (2017), 38–42; JETP Letters, 105:1 (2017), 47–50
Citation in format AMSBIB
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