Cross-coupling effects in circuit-QED stimulated Raman adiabatic passage

A. Vepsäläinen, G. S. Paraoanu

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Stimulated Raman adiabatic passage is a quantum protocol that can be used for robust state preparation in a three-level system. It has been commonly employed in quantum optics, but recently this technique has drawn attention also in circuit quantum electrodynamics. The protocol relies on two slowly varying drive pulses that couple the initial and the target state via an intermediate state, which remains unpopulated. Here we study the detrimental effect of the parasitic couplings of the drives into transitions other than those required by the protocol. The effect is most prominent in systems with almost harmonic energy level structure, such as the transmon. We show that under these conditions in the presence of decoherence there exists an optimal STIRAP amplitude for population transfer.

Original languageEnglish
Article number012141
Pages (from-to)1-6
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 19 Apr 2018
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Low Temperature Physics - Gothenburg, Sweden
Duration: 9 Aug 201716 Aug 2017
Conference number: 28

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