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Quantum Communication over long distances

Date: Tuesday, December 18, 2018 11:00 - 12:30
Speaker: Rupert Ursin (Austrian Academy of Sciences)
Location: Big Seminar room Ground floor / Office Bldg West (I21.EG.101)
Series: Physical Sciences Seminar
Host: Johannes Fink
Lab building west seminar room

Abstract:

Quantum networking is the next big issue in quantum communication science. We recently implemented a WDM fiber network, deploying polarization quits for four users. This network is scalable and fully connected - the perfect start for a future quantum internet [1]. I will discuss recent experiments we performed in collaboration with the Chinese Academy of Sciences using a LEO Satellite to perform quantum link to an optical ground station in Graz. Further I will discuss my future plans to implement a 24/7 quantum network spanning on international glas fibers between Vienna-Bratislava and Budapest and possibly also beyond.[1] 1. Wengerowsky, S., Joshi, S. K., Steinlechner, F., Hbel, H. & Ursin, R. Entanglement-based wavelength multiplexed quantum communication network. Accept. Publ. Nat. (2018). (https://arxiv.org/abs/1801.06194)
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