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arXiv · 1405.1766

Fault-tolerance against loss for photonic FTQEC

Ben Fortescue·Sameer Nawaf·Mark Byrd
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Abstract

In general, fault-tolerant quantum error correction (FTQEC) procedures are designed to detect, correct, and be fault-tolerant against errors occurring within the qubit subspace. But in some qubit implementations, additional "leakage" errors can occur in which the system leaves this subspace, and standard FTQEC procedures may not be fault-tolerant against such errors. Generic methods for achieving fault-tolerance against leakage are costly in terms of resources. In this paper we demonstrate that for a leakage model common to many photonic gate implementations, FTQEC can be implemented with far fewer additional operations than in the generic case.

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Ben Fortescue, Sameer Nawaf, Mark Byrd. 2014-05-07. Fault-tolerance against loss for photonic FTQEC. https://arxiv.org/abs/1405.1766

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