Verification of high-dimensional entanglement generated in quantum interference

Autor(en)

Yuanyuan Chen, Sebastian Ecker, Jessica Bavaresco, Thomas Scheidl, Lixiang Chen, Fabian Steinlechner, Marcus Huber, Rupert Ursin

Abstrakt

Entanglement and quantum interference are key ingredients in a variety of quantum information processing tasks. Harnessing the generation and characterization of entanglement in high-dimensional state spaces is a necessary prerequisite towards practical quantum protocols. Here, we use quantum interference on a beam splitter to engineer hyperentanglement in polarization and discrete frequency degrees of freedom (DOF). We show how independent measurements of polarization and frequency DOF allow for the verification of high-dimensional entanglement in the combined state space. These results may indicate new paths towards practical exploitation of entanglement stored in multiple degrees of freedom, in particular in the context of high-dimensional quantum information processing protocols.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Österreichische Akademie der Wissenschaften (ÖAW), Fraunhofer-Institut für Angewandte Optik und Feinmechanik, Friedrich-Schiller-Universität Jena, Xiamen University, Vienna Center for Quantum Science and Technology (VCQ)

Journal

Physical Review A

Band

101

Anzahl der Seiten

9

ISSN

2469-9926

DOI

https://doi.org/10.1103/PhysRevA.101.032302

Publikationsdatum

03-2020

Peer-reviewed

Ja

ÖFOS 2012

103025 Quantenmechanik, 103026 Quantenoptik

Schlagwörter

ASJC Scopus Sachgebiete

Atomic and Molecular Physics, and Optics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/4f2900ac-9842-408e-8ace-6d858a69876f