Newsletter registration

By using our website, you are agreeing to cookies being stored and Google Analytics being used on your device in order to offer the best possible service. You can find more information on thishere.
Austria.
Where Your Profits Grow Sky High.

Quantum connection under the sea

electronic component © Austrian Academy of Sciences/Klaus Pichler

An international team of researchers from the Austrian Academy of Sciences and the University of Vienna established a quantum encrypted connection between Sicily and Malta via a submarine cable. The record distance of 192 kilometres was a further step in the development of a secure quantum internet. The team now reports on their experiment in the scientific journal "Nature Quantum Information".
The researchers established a quantum-encrypted connection between Sicily and Malta via a conventional submarine telecommunications cable using entangled light particles. At the communication station on the coast of Malta, they first generated pairs of light particles that were entangled with each other via their random direction of oscillation, i.e. polarisation. The quantum key obtained in this way is secure: if an eavesdropper attempts to intercept such encrypted communication, the quantum physical state of the light particles would immediately change due to physical laws, and the "hacker" would immediately be caught.

This total distance of 192 kilometres is a new record for the method of producing quantum keys through polarisation-entangled light particles over longer distances on Earth. In this test setup, the transmission speed reached four bits per second.

The experiment at the bottom of the sea provided evidence of the unexpectedly high stability of the method and thus of the great potential it holds for the creation of a quantum internet of the future, by employing a conventional telecommunications infrastructure.

Read more about ICT research in Austria.

 

Share on Facebook Share on Facebook Share on Twitter Share on Twitter Share on Linkedin Share on Linkedin

Testimonials

Events

Meet us at events, seminars and trade shows - worldwide.

  • Doing Business in Austria

    03.03.2020, Bratislava, Slovakia

  • Austria as a European window for Russian export opportunities

    05.03.2020, Moscow, Russia

Austria Map

Find the perfect location for your company

The new Amazon distribution center in Großebersdorf is our first logistics site in Austria It will enable us to create additional and more flexible delivery capacities for the benefit of customers. We feel that we are in good hands, also thanks to the support of ABA – Invest in Austria.

Amazon

amazon.de
More testimonials

news from the business location Austria

Many-body quantum physics

Many of the biggest questions in physics can be answered with the help of quantum field theories: They are needed to describe the dynamics of many interacting particles. These theories are just as essential in solid state physics as they are in cosmology.

Growing demand for natural active ingredients enables Phytovalley Tyrol to flourish

The comeback of plant-based active ingredients in medicine, cosmetics and food production has positive impacts on Tyrol as a business location. Austria has succeeded in playing a pioneering role in plant research thanks to the support of the federal government, the Federal Province of Tyrol, the company Bionorica and the University of Innsbruck. This niche in plant research already established itself in Innsbruck years ago.

More news All blog posts