Die u:cris Detailansicht:
Experimental boson sampling
- Autor(en)
- Max Tillmann, Borivoje Dakic, Rene Heilmann, Stefan Nolte, Alexander Szameit, Philip Walther
- Abstrakt
Universal quantum computers1 promise a dramatic increase in speed over classical computers, but their full-size realization remains challenging2. However, intermediate quantum computational models3, 4, 5
have been proposed that are not universal but can solve problems that
are believed to be classically hard. Aaronson and Arkhipov6
have shown that interference of single photons in random optical
networks can solve the hard problem of sampling the bosonic output
distribution. Remarkably, this computation does not require
measurement-based interactions7, 8 or adaptive feed-forward techniques9.
Here, we demonstrate this model of computation using laser-written
integrated quantum networks that were designed to implement unitary
matrix transformations. We characterize the integrated devices using an in situ reconstruction method and observe three-photon interference10, 11, 12
that leads to the boson-sampling output distribution. Our results set a
benchmark for a type of quantum computer with the potential to
outperform a conventional computer through the use of only a few photons
and linear-optical elements13.
- Organisation(en)
- Quantenoptik, Quantennanophysik und Quanteninformation
- Externe Organisation(en)
- Friedrich-Schiller-Universität Jena
- Journal
- Nature Photonics
- Band
- 7
- Seiten
- 540-544
- Anzahl der Seiten
- 5
- ISSN
- 1749-4885
- DOI
- https://doi.org/10.1038/NPHOTON.2013.102
- Publikationsdatum
- 07-2013
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103026 Quantenoptik, 103025 Quantenmechanik, 103040 Photonik
- Schlagwörter
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/4e66b559-81d7-49f9-b879-96017242c4d5