First successful data transmission succeeded - Milestone in quantum communication


Quantum technology is a key technology for the security of our data and our modern communication. An important component of quantum communication is the interface between classical data and quantum data, so-called quantum bits or qubits.

Researchers from three continents are celebrating the first successful data transmission between a quantum flow parameter and a nanocryotron in Yokohama today. At less than 30 nm, the individual conducting paths of this device are more than 1000 times thinner than a human hair.

"This success is an important milestone for the practical application of quantum technology," says Prof. Thomas Ortlepp from the CiS Forschungsinstitut in Erfurt. Future quantum computers will require numerous such interfaces to be connected to our current computer networks. The photo shows the structure of the quantum chip with four nanocryotrons.

The research result is a joint success of the CiS Forschungsinstitut für Mikrosensorik GmbH in Erfurt, the Yokohama State University in Japan and the Massachusetts Institute of Technology in Cambridge, USA. The details of the experiments will be presented to experts at the ASC 2020 Applied Superconductivity Conference in Tampa, Florida, USA, at the end of June 2020.