Error models for mode mismatch in linear optics quantum computing

Peter P. Rohde*, Timothy C. Ralph

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)

    Abstract

    One of the most significant challenges facing the development of linear optics quantum computing (LOQC) is mode mismatch, whereby photon distinguishability is introduced within circuits, undermining quantum interference effects. We examine the effects of mode mismatch on the parity (or fusion) gate, the fundamental building block in several recent LOQC schemes. We derive simple error models for the effects of mode mismatch on its operation, and relate these error models to current fault-tolerant-threshold estimates.

    Original languageEnglish
    Article number062312
    JournalPhysical Review A - Atomic, Molecular, and Optical Physics
    Volume73
    Issue number6
    DOIs
    Publication statusPublished - 2006

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