For many years, quantum computers were not much more than an idea. Today, companies, governments and intelligence agencies are investing in the development of quantum technology. Robert König, professor for the theory of complex quantum systems at the TUM, in collaboration with David Gosset from the Institute for Quantum Computing at the University of Waterloo and Sergey Bravyi from IBM, has now placed a cornerstone in this promising field. Continue reading “First proof of quantum computer advantage”
Photonic chips harness sound waves to speed up local networks
It used to be known as the information superhighway — the fibre-optic infrastructure on which our gigabytes and petabytes of data whizz around the world at (nearly) the speed of light. Continue reading “Photonic chips harness sound waves to speed up local networks”
New way to make light interact with matter
A new way of enhancing the interactions between light and matter, developed by researchers at MIT and Israel’s Technion, could someday lead to more efficient solar cells that collect a wider range of light wavelengths, and new kinds of lasers and light-emitting diodes (LEDs) that could have fully tunable color emissions. Continue reading “New way to make light interact with matter”
Semiconductor quantum transistor opens the door for photon-based computing
Transistors are tiny switches that form the bedrock of modern computing; billions of them route electrical signals around inside a smartphone, for instance. Continue reading “Semiconductor quantum transistor opens the door for photon-based computing”
Generating electrical power from waste heat
Directly converting electrical power to heat is easy. It regularly happens in your toaster, that is, if you make toast regularly. The opposite, converting heat into electrical power, isn’t so easy. Continue reading “Generating electrical power from waste heat”
Future ultrahigh density data storage
The magnetisation of nanometric square material is not fixed. It moves around in a helical motion. This is caused by the electron whose degree of freedom, referred to as spin, which follows a precession motion centred on the middle of a square nano-magnet. Continue reading “Future ultrahigh density data storage”
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