title: Vacuum Rabi splitting in a semiconductor circuit QED system.
abstract: Vacuum Rabi splitting is demonstrated in a GaAs double quantum dot system coupled with a coplanar waveguide resonator. The coupling strength g, the decoherence rate of the quantum dot γ, and the decay rate of the resonator κ are derived, assuring distinct vacuum Rabi oscillation in a strong coupling regime [(g,γ,κ)≈(30,25,8.0) MHz]. The magnitude of decoherence is consistently interpreted in terms of the coupling of electrons to piezoelectric acoustic phonons in GaAs.
authors: Department of Basic Science, University of Tokyo, 3-8-1 Komaba, Tokyo 153-8902, Japan. toida@thz.c.u-tokyo.ac.jp
authors: H
authors: H
authors: Toida
authors: T
authors: T
authors: Nakajima
authors: S
authors: S
authors: Komiyama