DISTRIBUTED QUANTUM COMPUTATION ARCHITECTURE USING SEMICONDUCTOR NANOPHOTONICS

DOI DOI Web Site 被引用文献12件 オープンアクセス
  • RODNEY VAN METER
    Faculty of Environment and Information Studies, Keio University, 5322 Endo, Fujisawa, Kanagawa, 252-8520, Japan
  • THADDEUS D. LADD
    Edward L. Ginzton Laboratory, Stanford University, Stanford, CA, 94305-4088, USA
  • AUSTIN G. FOWLER
    Center for Quantum Computing Technology, University of Melbourne, Victoria 3010, Australia
  • YOSHIHISA YAMAMOTO
    Edward L. Ginzton Laboratory, Stanford University, Stanford, CA, 94305-4088, USA

書誌事項

公開日
2010-02
DOI
  • 10.1142/s0219749910006435
  • 10.48550/arxiv.0906.2686
公開者
World Scientific Pub Co Pte Ltd

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<jats:p>In a large-scale quantum computer, the cost of communications will dominate the performance and resource requirements, place many severe demands on the technology, and constrain the architecture. Unfortunately, fault-tolerant computers based entirely on photons with probabilistic gates, though equipped with "built-in" communication, have very large resource overheads; likewise, computers with reliable probabilistic gates between photons or quantum memories may lack sufficient communication resources in the presence of realistic optical losses. Here, we consider a compromise architecture, in which semiconductor spin qubits are coupled by bright laser pulses through nanophotonic waveguides and cavities using a combination of frequent probabilistic and sparse determinstic entanglement mechanisms. The large photonic resource requirements incurred by the use of probabilistic gates for quantum communication are mitigated in part by the potential high-speed operation of the semiconductor nanophotonic hardware. The system employs topological cluster-state quantum error correction for achieving fault-tolerance. Our results suggest that such an architecture/technology combination has the potential to scale to a system capable of attacking classically intractable computational problems.</jats:p>

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