Freiburg 2019 – wissenschaftliches Programm

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FM: Fall Meeting

FM 40: Poster: Quantum Computation: Hardware Platforms

FM 40.8: Poster

Dienstag, 24. September 2019, 16:30–18:30, Tents

Testing a photonic chip with entangled photons — •Bülent Demirel, Weikai Weng, Shreya Kumar, and Stefanie Barz — University of Stuttgart, FMQ, Stuttgart, Germany

Multipartite entangled states are useful for applications such as quantum networking and computing but also enable intriguing experiments on fundamental questions of quantum physics. Today's quantum technologies are based on the properties of large ensembles of particles, however, increasing the number of entangled parties is not a trivial process and requires increasing the number of components. Here, we show the generation of 4-photon entanglement, in particular a maximally entangled 4-photon GHZ state and a cluster state. We show how to generate those states using integrated optics. The presented results form the basis for subsequent few-photon experiments and future tests of quantum protocols on photonic chips.

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DPG-Physik > DPG-Verhandlungen > 2019 > Freiburg