All-optical cat-code quantum error correction

Jacob Hastrup*, Ulrik Lund Andersen*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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The cat code is a promising encoding scheme for bosonic quantum error correction as it allows for correction against losses - the dominant error mechanism in most bosonic systems. However, it has remained unclear how the required syndrome measurement and recovery can be implemented in the optical regime. Here, we introduce a teleportation-based error-correction scheme for the cat code, using elements suitable for an optical setting. The scheme detects and corrects single-photon losses while restoring the amplitude of the cat states, thereby greatly suppressing the accumulation of errors in lossy channels.
Original languageEnglish
Article number043065
JournalPhysical Review Research
Issue number4
Number of pages8
Publication statusPublished - 2022


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