Information Coding (ICG)

Representation of information in technical and biological systems.

 InformationskodningPhoto credit: Thor BalkhedWelcome to the home pages of Information Coding at Linköping University. Information Coding is a division of the Department of Electrical Engineering and is headed by professor Jan-Åke Larsson.

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Picture of an optical fibre launching light in a photonic integrated silicon chip at the quantum technologies laboratory at LiU.

Major progress towards high-dimensional quantum communication

A quantum mechanical random generator that functions with high security has been developed by a research group in which LiU researcher Guilherme Xavier is a member. The result opens the way for high-dimensional quantum communication.
Jonathan Jogenfors och Niklas Johansson i labbet

Quantum computers and photonics to attract students 

“We have seen increasing interest from students for quantum computers, quantum cryptography and photonics, says Jan-Åke Larsson, who has taken the initiative to a new profile within Applied Physics and Electrical Engineering. 

Swedish Research Council grant for secure quantum communication

The Swedish Research Council has awarded SEK 1.4 million to SECRET, a European collaborative project to increase security in quantum communication. The project, with a budget of EUR 340,000, will be coordinated by LiU researcher Guilherme Xavier.
Jan-Åke Larsson

Spreading light over quantum computers

Scientists at Linköping University have managed to simulate quantum computer properties in a classical computer. “Our results should be highly significant in determining how to build quantum computers”, says Professor Jan-Åke Larsson.
The Big Bell Test

The results of the Big Bell Test are in

3,283 people in Sweden, among them pupils at Katedralskolan in Linköping, participated in a huge experiment that challenged Einstein’s ideas about how the world works on the scale of quantum mechanics. The results have now been published in Nature.
Jonathan Jogenfors and Niklas Johansson

Hacking the unhackable

Jonathan Jogenfors’ doctoral thesis discusses security in what many people consider to be the most secure system of all – quantum cryptography. And it explains how to fix the holes he found. 

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