Scientists discover first antiferromagnetic topological quantum material

Science Daily  December 19, 2019 An international team of researchers led by Spain has developed a crystal growing technique for intrinsically magnetic topological material manganese-bismuth telluride (MnBi2Te4) and characterized the physical properties of the crystals. The team was able to prove both in theory and in spectroscopic experiments that MnBi2Te4 is the first antiferromagnetic topological insulator (AFMTI) below its Néel temperature. They optimized the synthesis protocol for the new material so that MnBi2Te4 single crystals can be produced more easily. Recent findings show that there are even more structural derivatives of MnBi2Te4, which are relevant in the context of MTI…read […]

Nanooptical traps: A promising building block for quantum technologies

Phys.org  November 19, 2019 By controlling individual atoms, quantum properties can be investigated and made usable for technological applications. However, the applicability of this technology has been limited because the atoms become very hot after a very short time and are lost. An international team of researchers (Austria, Germany) has carefully analyzed the system. With their theoretical model, they were able to show that a certain form of mechanical vibration of the glass fiber is responsible for the strong heating of the particles. This finding has important consequences for applications. The technology can be significantly improved with simple countermeasures, longer […]

Quantum Technologies Flagship kicks off with first 20 projects

Europa.eu  October 29, 2018 The Flagship will fund over 5,000 of Europe’s leading quantum technologies researchers over the next ten years and aims to place Europe at the forefront of the second quantum revolution. Its long-term vision is to develop in Europe a so-called quantum web, where quantum computers, simulators and sensors are interconnected via quantum communication networks. The Flagship will initially fund 20 projects , with a total of €132 million via the Horizon 2020 programme , and from 2021 onwards it is expected to fund a further 130 projects. Its total budget is expected to reach €1 billion, providing […]

The quantum technologies roadmap: a European community view

New Journal of Physics  August 1, 2018 In 2016 EU created a 150-page QT Roadmap . This article presents an updated summary of the roadmap. Software, protocols, and quantum information theory are essential for an optimal development of QT. Until now, most of the effort has focused on identifying the ultimate limits for quantum information processing. In the next 5–10 years, a parallel effort will be devoted to understanding what can be done with the first generations of small quantum processors, identifying for instance quantum computation protocols whose classical simulation is infeasible or realisation of protocols with unprecedented levels of security. […]