Quantum noise eater for a single photonic qubit

2013/08/04 by Miroslav Gavenda, Lucie Čelechovská, Miloslav Dušek +1 · 1 citation
Computer Science · Physics and Astronomy · #Interferometry #Neural Networks and Reservoir Computing #Noise (video) #Photon #Photonics #Quantum #Quantum Information and Cryptography #Quantum error correction #Quantum optics and atomic interactions #Qubit #Superposition principle #quant-ph

paper · pdf · doi:10.1088/1367-2630/15/8/083050

published in New Journal of Physics 15(8), 083050 (IOP Publishing) · 16 pages, 6 figures

arxiv created 2013/08/04 · openalex publication_date 2013/08/27 · arxiv updated 2015/06/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We propose a quantum noise eater for a single qubit and experimentally verify its performance for recovery of a superposition carried by a dual-rail photonic qubit. We consider a case when only one of the rails (e.g. one of interferometric arms) is vulnerable to noise. A coherent but randomly arriving photon penetrating into this single rail causes a change of its state, which results in an error in a subsequent quantum information processing. We theoretically prove and experimentally demonstrate a conditional full recovery of the superposition by this quantum noise eater.

Citations

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