News tagged with quantum mechanics

Our ambiguous world of words

(Phys.org) —Ambiguity in language poses the greatest challenge when it comes to training a computer to understand the written word. Now, new research aims to help computers find meaning.

May 31, 2013
4.7 / 5 (6) 5 | with audio podcast

Hydrogen atoms under the magnifying glass

To describe the microscopic properties of matter and its interaction with the external world, quantum mechanics uses wave functions, whose structure and time dependence is governed by the Schrödinger equation. ...

May 22, 2013
4.9 / 5 (9) 2

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

Quantum optics with microwaves

(Phys.org) —Physicists at ETH Zurich have demonstrated one of the quintessential effects of quantum optics—known as the Hong-Ou-Mandel effect—with microwaves, whose frequency is 100'000 times lower ...

May 08, 2013
4.9 / 5 (9) 0 | with audio podcast

'Spooky action at a distance' aboard the ISS

(Phys.org) —Albert Einstein famously described quantum entanglement as "spooky action at distance"; however, up until now experiments that examine this peculiar aspect of physics have been limited to relatively ...

Apr 09, 2013
4.8 / 5 (28) 22 | with audio podcast

On the origins of the Schrodinger equation

(Phys.org) —One of the cornerstones of quantum physics is the Schrödinger equation, which describes what a system of quantum objects such as atoms and subatomic particles will do in the future based on ...

Apr 08, 2013 feature
4.7 / 5 (42) 27 | with audio podcast