title: Producing cluster states in charge qubits and flux qubits.
abstract: We propose a method to efficiently generate cluster states in charge qubits, both semiconducting and superconducting, as well as flux qubits. We show that highly entangled cluster states can be realized by a "one-touch" entanglement operation by tuning gate bias voltages for charge qubits. We also investigate the robustness of these cluster states for nonuniform qubits, which are unavoidable in solid-state systems. We find that quantum computation based on cluster states is a promising approach for solid-state qubits.
authors.affiliation: Corporate R&D Center, Toshiba Corporation, Kawasaki 212-8582, Japan.
authors.forename: Tetsufumi
authors.initials: T
authors.lastname: Tanamoto
authors.forename: Yu-xi
authors.initials: YX
authors.lastname: Liu
authors.forename: Shinobu
authors.initials: S
authors.lastname: Fujita
authors.forename: Xuedong
authors.initials: X
authors.lastname: Hu
authors.forename: Franco
authors.initials: F
authors.lastname: Nori