title: Strong coupling of spin qubits to a transmission line resonator.
abstract: We propose a mechanism for coupling spin qubits formed in double quantum dots to a superconducting transmission line resonator. Coupling the resonator to the gate controlling the interdot tunneling creates a spin qubit-resonator interaction with a strength of tens of MHz. This mechanism allows operating the system at a symmetry point where decoherence due to charge noise is minimized. The transmission line can serve as the shuttle, allowing for fast two-qubit operations including the generation of qubit-qubit entanglement and the implementation of a controlled-phase gate.
authors.affiliation: Institut für Theoretische Festkörperphysik, Karlsruhe Institute of Technology, 76128 Karlsruhe, Germany.
authors.forename: Pei-Qing
authors.initials: PQ
authors.lastname: Jin
authors.forename: Michael
authors.initials: M
authors.lastname: Marthaler
authors.forename: Alexander
authors.initials: A
authors.lastname: Shnirman
authors.forename: Gerd
authors.initials: G
authors.lastname: Schön