Scientists have created the first elementary quantum network based on interfaces between single atoms and photons.A team of scientists at the MPQ realizes a first elementary quantum network based on interfaces between single atoms and photons.
Whether it comes to phoning a friend or to using the internet -- our daily communication is based on sophisticated networks, with data being transferred at the speed of light between different nodes. It is a tremendous challenge to build corresponding networks for the exchange of quantum information. These quantum networks would differ profoundly from their classical counterparts: Besides giving insights into fundamental questions in physics, they could also have applications in secure communication and the simulation of complex many-body systems, or they could be used for distributed quantum computing. One prerequisite for functional quantum networks are stationary nodes that allow for the reversible exchange of quantum information.
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