News tagged with quantum mechanics

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

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