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Quantum state preparation in circuit QED via Landau-Zener tunneling

Keiji Saito·Martijn Wubs·Sigmund Kohler·Peter Hanggi·Yosuke Kayanuma
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Abstract

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.

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Keiji Saito, Martijn Wubs, Sigmund Kohler, Peter Hanggi, Yosuke Kayanuma. 2006-10-02. Quantum state preparation in circuit QED via Landau-Zener tunneling. https://doi.org/10.1209/epl%2Fi2006-10232-4

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