Quantum state preparation in circuit QED via Landau-Zener tunneling

Keiji Saitou, M. Wubs, S. Kohler, P. Hänggi, Y. Kayanuma

Research output: Contribution to journalArticle

51 Citations (Scopus)


We study a qubit undergoing Landau-Zener transitions enabled by the coupling to a circuit-QED mode. Summing an infinite-order perturbation series, we determine the exact nonadiabatic transition probability for the qubit, being independent of the frequency of the QED mode. Possible applications are single-photon generation and the controllable creation of qubit-oscillator entanglement.

Original languageEnglish
Pages (from-to)22-28
Number of pages7
JournalEurophysics Letters
Issue number1
Publication statusPublished - 2006 Oct 1
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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