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Current issue

ELEKTRO 8-9/2019 was released on September 3rd 2019. Its digital version will be available immediately.

Topic: Electrical engineering in industry; 61th International Engineering Fair in Brno

Main Article
Residual current devices – overview and usage

SVĚTLO (Light) 5/2019 was released on September 16th 2019. Its digital version will be available immediately.

Professional organizations activities
International conference LIGHT (SVĚTLO) 2019 – 6th announcement
We participated in International commission on illumination CIE 2019 congress in Washington
Technical colloquium SLOVALUX 2019

Fairs and exhibitions
Inspire with boho styl and design of Far East at autumn fair FOR INTERIOR

Complex quantum teleportation achieved for the first time

23.08.2019 | University of Vienna | www.univie.ac.at/en

Researchers from the Austrian Academy of Sciences and the University of Vienna have experimentally demonstrated what was previously only a theoretical possibility. Together with quantum physicists from the University of Science and Technology of China, they have succeeded in teleporting complex high-dimensional quantum states. The research teams report this international first in the journal "Physical Review Letters".

In their study, the researchers teleported the quantum state of one photon (light particle) to another distant one. Previously, only two-level states ("qubits") had been transmitted, i.e., information with values "0" or "1". However, the scientists succeeded in teleporting a three-level state, a so-called "qutrit". In quantum physics, unlike in classical computer science, "0" and "1" are not an 'either/or' – both simultaneously, or anything in between, is also possible. The Austrian-Chinese team has now demonstrated this in practice with a third possibility "2".

Quantum teleportation

The participating Chinese researchers also see great opportunities in multidimensional quantum teleportation. "The basics for the next-generation quantum network systems is built on our foundational research today", says Jian-Wei Pan from the University of Science and Technology of China. Pan recently held a lecture in Vienna at the invitation of the University of Vienna and the Academy. In future work, the quantum physicists will focus on how to extend the newly gained knowledge to enable teleportation of the entire quantum state of a single photon or atom.

Read more at University of Vienna

Image Credit: ÖAW/Harald Ritsch

-jk-