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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2010, Volume 91, Issue 10, Pages 584–589
(Mi jetpl725)
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This article is cited in 3 scientific papers (total in 3 papers)
QUANTUM INFORMATION SCIENCE
Quantum jumps in Landau-Zener transitions in the dissipative dynamics of a superconducting qubit
A. I. Gel'mana, A. M. Sataninb a Institute of Applied Physics, Russian Academy of Sciences
b N. I. Lobachevski State University of Nizhni Novgorod
Abstract:
The effect of noise on the populations of the levels of a qubit in individual experimental implementations has been studied by the quantum trajectory method. A transition to the average dynamics obtained by means of multiple measurements of the state of the qubit is analyzed. The developed method is applied to investigate the effect of noise on the interference pattern appearing in the amplitude spectroscopy of the qubit in a strong variable field owing to Landau-Zener transitions. The effect of the number of repeated measurements and the fluctuation of the phase of a pump pulse on the formation of the response of the qubit to the external field has been analyzed. This makes it possible to interpret recent experiments in terms of individual implementations and averaged dynamics.
Received: 30.03.2010
Citation:
A. I. Gel'man, A. M. Satanin, “Quantum jumps in Landau-Zener transitions in the dissipative dynamics of a superconducting qubit”, Pis'ma v Zh. Èksper. Teoret. Fiz., 91:10 (2010), 584–589; JETP Letters, 91:10 (2010), 535–540
Linking options:
https://www.mathnet.ru/eng/jetpl725 https://www.mathnet.ru/eng/jetpl/v91/i10/p584
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Abstract page: | 350 | Full-text PDF : | 186 | References: | 34 |
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