In quantum physics, the creation of a state of entanglement in particles any larger and more complex than photons usually requires temperatures close to absolute zero and
the application of enormously powerful magnetic fields to achieve. Now
scientists working at the University of Chicago and the Argonne
National Laboratory claim to have created this entangled state at room
temperature on a semiconductor chip, using atomic nuclei and the application of
relatively small magnetic fields.
Boasting an energy density similar to that of gasoline, lithium-air (or lithium-oxygen) batteries may one day prove the panacea for the range-anxiety associated with electric vehicles. But first there are a number of challenges that need to be overcome, one of which is the unwanted buildup of lithium peroxide on the electrode which hampers this type of battery's performance. Scientists have now figured out a way that this mess might be avoided – an advance they say could lead to batteries with five times the energy density of those currently available.
Researchers from the US Department of Energy's Argonne National Laboratory have created a new combination material from graphene and diamonds that's able to almost entirely overcome friction. The property, known as superlubricity, is highly sought after for its potential use in a wide range of mechanical systems.