News tagged with classical physics

Quantum causal relations: A causes B causes A

A deeply rooted concept in everyday life is causality; the idea that events in the present are caused by events in the past and, in turn, act as causes for what happens in the future. Physicists from the ...

Oct 02, 2012
4 / 5 (26) 55 | with audio podcast

Breaking the limits of classical physics

(Phys.org) -- With simple arguments, researchers show that nature is complicated. Researchers from the Niels Bohr Institute have made a simple experiment that demonstrates that nature violates common sense ...

Jun 07, 2012
3.3 / 5 (43) 32 | with audio podcast

Quantum copies do new tricks

One of the strange features of quantum information is that, unlike almost every other type of information, it cannot be perfectly copied. For example, it is impossible to take a single photon and make a number of photons ...

Mar 22, 2012
4.2 / 5 (13) 22 | with audio podcast

A dynamical quantum simulator

(PhysOrg.com) -- An international collaboration demonstrates the superiority of a dynamical quantum simulator over state-of-the-art numerical calculations.

Mar 16, 2012
4.6 / 5 (7) 0 | with audio podcast

Two molecules communicate via single photons

Scientists realize one of the most elementary and oldest "gedanken" experiments in modern physics, namely, excitation of a single molecule with a single photon. This paves the way for further investigations ...

Feb 28, 2012
5 / 5 (12) 0 | with audio podcast

Long live the qubit!

A quantum computer is a device -- still largely theoretical -- that could perform some types of calculations much more rapidly than classical computers. While a bit in a classical computer can represent either ...

Jun 02, 2011
4.9 / 5 (7) 3 | with audio podcast

Electromechanics also operates at the nanoscale

What limits the behaviour of a carbon nanotube? This is a question that many scientists are trying to answer. Physicists at University of Gothenburg, Sweden, have now shown that electromechanical principles ...

May 09, 2011
4.5 / 5 (2) 0