Instituto de Ciencia de Materiales de Madrid
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Quantum state preparation in circuit QED via Landau-Zener tunneling

Keiji Saito, Martijn Wubs, Sigmund Kohler, Peter Hänggi, and Yosuke Kayanuma
Europhys. Lett. 76, 22 (2006)

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.

[ICMM-CSIC] [Condensed Matter Theory]
last modified: 18.6.2018 by Sigmund Kohler