Demonstrating elements of measurement-based quantum error correction
- Author(s)
- Stefanie Barz, Rui Vasconcelos, Chiara Greganti, Michael Zwerger, Wolfgang Dür, Hans J. Briegel, Philip Walther
- Abstract
In measurement-based quantum computing an algorithm is performed by measurements on highly entangled resource states. To date, several implementations were demonstrated, most of them assuming perfect noise-free environments. Here we consider measurement-based information processing in the presence of noise and demonstrate quantum error detection. We implement the protocol using a four-qubit photonic cluster state where we first encode a general qubit nonlocally such that phase errors can be detected. We then read out the error syndrome and analyze the output states after decoding. Our demonstration shows a building block for measurement-based quantum computing which is crucial for realistic scenarios.
- Organisation(s)
- Quantum Optics, Quantum Nanophysics and Quantum Information
- External organisation(s)
- Leopold-Franzens-Universität Innsbruck, Österreichische Akademie der Wissenschaften (ÖAW)
- Journal
- Physical Review A
- Volume
- 90
- No. of pages
- 10
- ISSN
- 1050-2947
- DOI
- https://doi.org/10.1103/PhysRevA.90.042302
- Publication date
- 10-2014
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103025 Quantum mechanics
- Keywords
- ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/demonstrating-elements-of-measurementbased-quantum-error-correction(4f4d1954-2f0d-4248-a3f9-4a9a65470bb2).html