News tagged with quantum systems

Quantum engines must break down

Our present understanding of thermodynamics is fundamentally incorrect if applied to small systems and needs to be modified, according to new research from University College London (UCL) and the University of Gdańsk. The ...

Jun 26, 2013
4.8 / 5 (21) 1 | with audio podcast

New scheme for quantum computing

(Phys.org) —Tom Wong, a graduate student in physics and David Meyer, professor of mathematics at the University of California, San Diego, have proposed a new algorithm for quantum computing, that will speed ...

Jun 25, 2013
4.9 / 5 (21) 3 | with audio podcast

Penetrating the quantum nature of magnetism

Antiferromagnets are materials that lose their apparent magnetic properties when cooled down close to absolute zero temperature. Different to conventional magnets, which can be described with classical physics ...

Jun 17, 2013
4.9 / 5 (11) 1 | with audio podcast

A quantum simulator for magnetic materials

Physicists understand perfectly well why a fridge magnet sticks to certain metallic surfaces. But there are more exotic forms of magnetism whose properties remain unclear, despite decades of intense research. ...

May 23, 2013
4.5 / 5 (8) 1 | with audio podcast

Making quantum encryption practical

One of the many promising applications of quantum mechanics in the information sciences is quantum key distribution (QKD), in which the counterintuitive behavior of quantum particles guarantees that no one can eavesdrop on ...

May 21, 2013
5 / 5 (5) 8 | with audio podcast