2006/03/31 by Keiji Saito, Martijn Wubs, Sigmund Kohler +2 · 1 citation
Physics and Astronomy · #cond-mat.mes-hall #cond-mat.supr-con #quant-ph
paper · pdf · doi:10.1209/epl/i2006-10232-4
published as Europhys. Lett. vol. 76, 22 (2006) · 7 pages, 3 figures
arxiv created 2006/10/02 · arxiv updated 2009/12/01
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.