Simultaneous transmission of hyper-entanglement in three degrees of freedom through a multicore fiber

Autor: Lukas Achatz, Lukas Bulla, Sebastian Ecker, Evelyn A. Ortega, Michael Bartokos, Juan Carlos Alvarado-Zacarias, Rodrigo Amezcua-Correa, Martin Bohmann, Rupert Ursin, Marcus Huber

Publikováno v: npj Quantum Information, Vol 9, Iss 1, Pp 1-6 (2023)

Abstract Entanglement distribution is at the heart of most quantum communication protocols. Inevitable loss of photons along quantum channels is a major obstacle for distributing entangled photons over long distances, as the no-cloning theorem forbid

Externí odkaz: https://doaj.org/article/dfcb6d47c63c4407996301d87a0e2939

Certifying position-momentum entanglement at telecommunication wavelengths

Autor: Lukas Achatz, Evelyn A Ortega, Krishna Dovzhik, Rodrigo F Shiozaki, Jorge Fuenzalida, Sören Wengerowsky, Martin Bohmann, Rupert Ursin

TheThe successful employment of high-dimensional quantum correlations and its integration in telecommunication infrastructures is vital in cutting-edge quantum technologies for increasing robustness and key generation rate. Position-momentum Einstein

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b862ba5e6616df3ac6914c7e4e098b1a
https://publica.fraunhofer.de/handle/publica/425417

Experimental high-rate multiplexed quantum communication

Autor: Martin Bohmann, Evelyn Ortega, Johannes Pseiner, Sebastian P. Neumann, Lukas Achatz, Lukas Bulla, M. Selimovic, Krishna Dovzhik, Rupert Ursin

Publikováno v: Quantum Information and Measurement VI 2021.

We introduce a general scheme for increasing secure key rates in entanglement-based cryptography exploiting multiple degrees of freedom. We experimentally exemplify this scheme through spatial and wavelength multiplexing. Scalability of our approach

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a66cdafba39f14600e27b5f58575e3df
https://doi.org/10.1364/qim.2021.m2c.5

Proof of Principle for Ramsey-type Gravity Resonance Spectroscopy with qBounce

Autor: Tobias Rechberger, Manuel Heiß, Mario Pitschmann, Lukas Achatz, René I. P. Sedmik, Joachim Bosina, Peter Geltenbort, Jakob Micko, Tobias Jenke, Martin Thalhammer, Andrey N. Ivanov, Patrick Schmidt, Hartmut Abele

Publikováno v: EPJ Web Conf.
International Workshop on Particle Physics at Neutron Sources 2018
International Workshop on Particle Physics at Neutron Sources 2018, May 2018, Grenoble, France. pp.05004, ⟨10.1051/epjconf/201921905004⟩
'EPJ Web of Conferences ', vol: 219, pages: 05004-1-05004-7 (2019)
EPJ Web of Conferences, Vol 219, p 05004 (2019)

Ultracold neutrons (UCNs) are formidable probes in precision tests of gravity. With their negligible electric charge, dielectric moment, and polarizability they naturally evade some of the problems plaguing gravity experiments with atomic or macrosco

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20f4da8d0ef951873623b7e6ffced729