Die u:cris Detailansicht:
Interface between path and orbital angular momentum entanglement for high-dimensional photonic quantum information
- Autor(en)
- Robert Fickler, Radek Lapkiewicz, Marcus Huber, Martin P.J. Lavery, Miles J. Padgett, Anton Zeilinger
- Abstrakt
Photonics has become a mature field of quantum information science, where integrated optical circuits offer a way to scale the complexity of the set-up as well as the dimensionality of the quantum state. On photonic chips, paths are the natural way to encode information. To distribute those high-dimensional quantum states over large distances, transverse spatial modes, like orbital angular momentum possessing Laguerre Gauss modes, are favourable as flying information carriers. Here we demonstrate a quantum interface between these two vibrant photonic fields. We create three-dimensional path entanglement between two photons in a nonlinear crystal and use a mode sorter as the quantum interface to transfer the entanglement to the orbital angular momentum degree of freedom. Thus our results show a flexible way to create high-dimensional spatial mode entanglement. Moreover, they pave the way to implement broad complex quantum networks where high-dimensionally entangled states could be distributed over distant photonic chips.
- Organisation(en)
- Quantenoptik, Quantennanophysik und Quanteninformation
- Externe Organisation(en)
- The Institute of Photonic Sciences, University of Glasgow
- Journal
- Nature Communications
- Band
- 5
- Anzahl der Seiten
- 6
- ISSN
- 2041-1723
- DOI
- https://doi.org/10.1038/ncomms5502
- Publikationsdatum
- 07-2014
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103025 Quantenmechanik, 103026 Quantenoptik
- ASJC Scopus Sachgebiete
- General, Allgemeine Physik und Astronomie, Allgemeine Chemie, Allgemeine Biochemie, Genetik und Molekularbiologie
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/18c1b657-739c-4182-b12a-0cc1fb930edc