Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.73.012304
Title: Repeat-until-success quantum computing using stationary and flying qubits
Authors: Lim, Y.L.
Barrett, S.D.
Beige, A.
Kok, P.
Kwek, L.C. 
Issue Date: 2006
Citation: Lim, Y.L., Barrett, S.D., Beige, A., Kok, P., Kwek, L.C. (2006). Repeat-until-success quantum computing using stationary and flying qubits. Physical Review A - Atomic, Molecular, and Optical Physics 73 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.73.012304
Abstract: We introduce an architecture for robust and scalable quantum computation using both stationary qubits (e.g., single photon sources made out of trapped atoms, molecules, ions, quantum dots, or defect centers in solids) and flying qubits (e.g., photons). Our scheme solves some of the most pressing problems in existing nonhybrid proposals, which include the difficulty of scaling conventional stationary qubit approaches, and the lack of practical means for storing single photons in linear optics setups. We combine elements of two previous proposals for distributed quantum computing, namely the efficient photon-loss tolerant build up of cluster states by Barrett and Kok [Phys. Rev. A 71, 060310(R) (2005)] with the idea of repeat-until-success (RUS) quantum computing by Lim [Phys. Rev. Lett. 95, 030505 (2005)]. This idea can be used to perform eventually deterministic two qubit logic gates on spatially separated stationary qubits via photon pair measurements. Under nonideal conditions, where photon loss is a possibility, the resulting gates can still be used to build graph states for one-way quantum computing. In this paper, we describe the RUS method, present possible experimental realizations, and analyze the generation of graph states. © 2006 The American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/97804
ISSN: 10502947
DOI: 10.1103/PhysRevA.73.012304
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