title: Strong coupling of a single electron in silicon to a microwave photon.
abstract: Silicon is vital to the computing industry because of the high quality of its native oxide and well-established doping technologies. Isotopic purification has enabled quantum coherence times on the order of seconds, thereby placing silicon at the forefront of efforts to create a solid-state quantum processor. We demonstrate strong coupling of a single electron in a silicon double quantum dot to the photonic field of a microwave cavity, as shown by the observation of vacuum Rabi splitting. Strong coupling of a quantum dot electron to a cavity photon would allow for long-range qubit coupling and the long-range entanglement of electrons in semiconductor quantum dots.
authors.affiliation: Department of Physics, Princeton University, Princeton, NJ 08544, USA.
authors.forename: X
authors.initials: X
authors.lastname: Mi
authors.affiliation: Department of Physics, Princeton University, Princeton, NJ 08544, USA.
authors.forename: J V
authors.initials: JV
authors.lastname: Cady
authors.affiliation: Department of Physics, Princeton University, Princeton, NJ 08544, USA.
authors.forename: D M
authors.initials: DM
authors.lastname: Zajac
authors.affiliation: HRL Laboratories LLC, 3011 Malibu Canyon Road, Malibu, CA 90265, USA.
authors.forename: P W
authors.initials: PW
authors.lastname: Deelman
authors.affiliation: Department of Physics, Princeton University, Princeton, NJ 08544, USA. petta@princeton.edu.
authors.forename: J R
authors.initials: JR
authors.lastname: Petta