Generation and confirmation of a (100 x 100)-dimensional entangled quantum system

Autor(en)

Mario Krenn, Marcus Huber, Robert Fickler, Radoslaw Lapkiewicz, Sven Ramelow, Anton Zeilinger

Abstrakt

Entangled quantum systems have properties that have fundamentally overthrown the classical worldview. Increasing the complexity of entangled states by expanding their dimensionality allows the implementation of novel fundamental tests of nature, and moreover also enables genuinely newprotocols for quantum information processing. Here we present the creation of a (100 x 100)-dimensional entangled quantum system, using spatial modes of photons. For its verification we develop a novel nonlinear criterion which infers entanglement dimensionality of a global state by using only information about its subspace correlations. This allows very practical experimental implementation as well as highly efficient extraction of entanglement dimensionality information. Applications in quantum cryptography and other protocols are very promising.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Österreichische Akademie der Wissenschaften (ÖAW), The Institute of Photonic Sciences, University of Bristol, Universitat Autònoma de Barcelona

Journal

Proceedings of the National Academy of Sciences of the United States of America (PNAS)

Band

111

Seiten

6243-6247

Anzahl der Seiten

5

ISSN

0027-8424

DOI

https://doi.org/10.1073/pnas.1402365111

Publikationsdatum

04-2014

Peer-reviewed

Ja

ÖFOS 2012

103026 Quantenoptik

Schlagwörter

ASJC Scopus Sachgebiete

General

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/df1adde5-4c12-4e4a-ba10-bf437c6832b5