Frequency and temporal effects in linear optical quantum computing

Peter P. Rohde, Timothy C. Ralph

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


Typically linear optical quantum computing (LOQC) models assume that all input photons are completely indistinguishable. In practice there will inevitably be nonidealities associated with the photons and the experimental setup which will introduce a degree of distinguishability between photons. We consider a nondeterministic optical controlled-NOT gate, a fundamental LOQC gate, and examine the effect of temporal and spectral distinguishability on its operation. We also consider the effect of utilizing nonideal photon counters, which have finite bandwidth and time response.

Original languageEnglish
Article number032320
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
Publication statusPublished - 1 Mar 2005

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