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This article is cited in 7 scientific papers (total in 7 papers)
QUANTUM INFORMATION SCIENCE
Spectroscopy of a superconducting flux qubit in a quasidispersive mode
B. I. Ivanova, I. L. Novikova, A. N. Sultanova, Ya. S. Greenberga, A. V. Krivetskiia, A. G. Vostretsova, E. Il'ichevab a Novosibirsk State Technical University
b Leibniz Institute of Photonic Technology
Abstract:
The properties of a superconducting flux quantum bit (qubit) in the quasidispersive mode, where the frequency of a probe signal is lower than the qubit excitation frequency but is close to it, have been experimentally studied. It has been shown that all parameters of the qubit inductively coupled to a coplanar resonator can be determined at the single-frequency excitation from the analysis of the frequency responses of the transmission of the probe signal at the output of this resonator. Under the additional excitation of the qubit by the signal at the second harmonic of the cavity, resonance dips have been observed because of resonance between the probe signal and induced Rabi splitting. It has been shown that the positions of these dips are in good agreement with the parameters of the qubit that are obtained by analyzing the amplitude-frequency response within the width of the fundamental resonance frequency.
Received: 13.01.2016 Revised: 09.02.2016
Citation:
B. I. Ivanov, I. L. Novikov, A. N. Sultanov, Ya. S. Greenberg, A. V. Krivetskii, A. G. Vostretsov, E. Il'ichev, “Spectroscopy of a superconducting flux qubit in a quasidispersive mode”, Pis'ma v Zh. Èksper. Teoret. Fiz., 103:6 (2016), 475–480; JETP Letters, 103:6 (2016), 425–430
Linking options:
https://www.mathnet.ru/eng/jetpl4901 https://www.mathnet.ru/eng/jetpl/v103/i6/p475
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