Error distributions on large entangled states with non-Markovian dynamics

Abstract

We investigate the distribution of errors on a computationally useful entangled state generated via the repeated emission from an emitter undergoing strongly non-Markovian evolution. For emitter-environment coupling of pure-dephasing form, we show that the probability that a particular patten of errors occurs has a bound of Markovian form, and thus accuracy threshold theorems based on Markovian models should be just as effective. This is the case, for example, for a charged quantum dot emitter in a moderate to strong magnetic field. Beyond the pure-dephasing assumption, though complicated error structures can arise, they can still be qualitatively bounded by a Markovian error model.

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Cited by in corpus (3)

• Protocol for generating multi-photon entangled states from quantum dots in the presence of nuclear spin fluctuations
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• Non-Markovian dynamics for a two-atom-coupled system interacting with local reservoir at finite temperature