News tagged with quantum physics

A non-causal quantum eraser

Whether a quantum object behaves like a wave or like a particle depends (according to the Copenhagen interpretation) on the choice of measurement apparatus used for observing the system, and therefore on ...

Jan 09, 2013 4.4 / 5 (9) 54 | with audio podcast

A one-way street for spinning atoms

Elementary particles have a property called "spin" that can be thought of as rotation around their axes. In work reported this week in the journal Physical Review Letters, MIT physicists have imposed a stri ...

Aug 30, 2012 4.9 / 5 (8) 7 | with audio podcast

Slowing down microwaves in a chip

EPFL scientists have succeeded in capturing a microwave pulse within a chip for several milliseconds before releasing it with little loss. This extraordinary delay normally requires hundreds of miles of electrical ...

Jan 31, 2013 4.6 / 5 (8) 1 | with audio podcast

Freezing electrons in flight

(Phys.org)—Using the world's fastest laser pulses, which can freeze the ultrafast motion of electrons and atoms, University of Arizona physicists have caught the action of molecules breaking apart and electrons ...

Oct 15, 2012 5 / 5 (7) 7 | with audio podcast