title: Scalable, high-speed measurement-based quantum computer using trapped ions.
abstract: We describe a scalable, high-speed, and robust architecture for measurement-based quantum computing with trapped ions. Measurement-based architectures offer a way to speed up operation of a quantum computer significantly by parallelizing the slow entangling operations and transferring the speed requirement to fast measurement of qubits. We show that a 3D cluster state suitable for fault-tolerant measurement-based quantum computing can be implemented on a 2D array of ion traps. We propose the projective measurement of ions via multiphoton photoionization for nanosecond operation and discuss the viability of such a scheme for Ca ions.
authors.affiliation: Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada. restock@physics.utoronto.ca
authors.forename: René
authors.initials: R
authors.lastname: Stock
authors.forename: Daniel F V
authors.initials: DF
authors.lastname: James