Quantum state preparation in circuit QED via Landau-Zener tunneling
arXiv:cond-mat/0603188 · doi:10.1209/epl/i2006-10232-4
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.
7 pages, 3 figures