Journal article · Preprint article
Deterministic generation of a two-dimensional cluster state
Measurement-based quantum computation offers exponential computational speed-up through simple measurements on a large entangled cluster state. We propose and demonstrate a scalable scheme for the generation of photonic cluster states suitable for universal measurement-based quantum computation. We exploit temporal multiplexing of squeezed light modes, delay loops, and beam-splitter transformations to deterministically generate a cylindrical cluster state with a two-dimensional (2D) topological structure as required for universal quantum information processing.
The generated state consists of more than 30,000 entangled modes arranged in a cylindrical lattice with 24 modes on the circumference, defining the input register, and a length of 1250 modes, defining the computation depth. Our demonstrated source of two-dimensional cluster states can be combined with quantum error correction to enable fault-tolerant quantum computation.
Language: | English |
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Publisher: | American Association for the Advancement of Science |
Year: | 2019 |
Pages: | 369-372 |
ISSN: | 10959203 and 00368075 |
Types: | Journal article and Preprint article |
DOI: | 10.1126/science.aay4354 |
ORCIDs: | Larsen, Mikkel Vilsbøll , 0000-0002-3115-8826 , Breum, Casper Rubæk , Neergaard-Nielsen, Jonas Schou and Andersen, Ulrik Lund |