SKM 2023 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 33: Poster II
HL 33.23: Poster
Mittwoch, 29. März 2023, 17:00–19:00, P1
Towards Silicon Vacancy centers based quantum repeaters for a distributed quantum computing network in 4H-SiC — •Maximilian Hollendonner1, Fedor Hrunski1, Andre Pointner1, Shravan Kumar Parthasarathy2,1, Christian Gobert2, Daniel Scheller1, and Roland Nagy1 — 1Chair of Electron Devices, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany — 2Fraunhofer Institute for Integrated Systems and Device Technology IISB, Schottkystraße 10, Erlangen, Germany
For the successful integration of quantum technological systems, like for instance optical quantum computers and quantum sensors [1] into a quantum internet of things it is vital to have quantum repeaters which mediate the exchange of information between various quantum nodes. Due to its excellent optical and spin properties [2], the V2 silicon vacancy center in 4H-SiC is a promising platform for this task. Within this project we aim at building an interferometer in which after a first 50/50 beam splitter, two single V2 centers separated by 2 meters are excited by 916nm photons. The single photon emitted by one of the two color centers then enters a second beam splitter, which effectively removes the which-path information and therefore creates a maximally entangled Bell state [3]. Successful demonstration of this entanglement between these two V2 centers will be a vital step towards realization of a quantum internet of things.
Sources: [1] J. R. Maze et al., Nature 455, 644-647 (2008) [2] R. Nagy et al., Nat Commun 10, 1954 (2019) [3] P. C. Humphreys et al., Nature 558, 268-273 (2018)