Category Archives: Blog

The Knotty Issues Of Quantum Entanglement

Quantum entanglement is a great way of transmitting information over distances almost instantly, but signal loss restricts the effective range to about 100 miles. So you need the equivalent of signal repeaters along the route – and a group of Chinese physicists have developed a method of boosting the signal via a process called ‘entanglement swapping’ which involves entangling photons that are already entangled. The scientists admit that this is a hard concept for them to get their own heads around; scant hope for us laymen, then.

Nanosuperconductors

Where the hell are those mag-lev trains they promised us when they discovered superconductivity? They are a step closer to reality thanks to scientists at the Oak Ridge National Laboratory, who have introduced nanoscale defects into a “cuprate” superconductor to create short wires that can carry large currents and work in strong magnetic fields. Once they get it scaled up to kilometer lengths, high speed trains will be one of many applications.