Amplitude and phase effects in Josephson qubits driven by a biharmonic electromagnetic field

A. M. Satanin, M. V. Denisenko, A. I. Gelman, and Franco Nori

Phys. Rev. B 90, 104516 – Published 22 September 2014

Abstract

We investigate the amplitude and phase effects of qubit dynamics and excited-state population under the influence of a biharmonic control field. It is demonstrated that the biharmonic driving field can have a significant effect on the behavior of quasienergy level crossing as well as on multiphoton transitions. Also, the interference pattern for the populations of qubit excited states is sensitive to the signal parameters. We discuss the possibility of using these effects for manipulating qubit states and calibrating nanosecond pulses.

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Received 21 May 2013
Revised 2 September 2014

DOI:https://doi.org/10.1103/PhysRevB.90.104516

Authors & Affiliations

A. M. Satanin^1,*, M. V. Denisenko¹, A. I. Gelman², and Franco Nori^3,4

¹Nizhny Novgorod State University, 23 Gagarin Ave., 603950, Nizhny Novgorod, Russia
²Institute of Applied Physics RAS, 46 Ul'yanov Str., 603950, Nizhny Novgorod, Russia
³CEMS, RIKEN, Saitama, 351-0198, Japan
⁴Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA

^*sarkady@mail.ru

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Vol. 90, Iss. 10 — 1 September 2014

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