A Quantum Arrow of Time
03/11/2013 07:03
The mathematical laws of physics work just as well for events going forward or going backward in time. Yet in the real world, hot coffee never unmixes itself from cold milk. A theorist publishing in the 21 August Physical Review Letters offers a new explanation for this apparent conflict between the time-symmetry of the physical laws and the forward “arrow of time” we see in everyday events. [Read more] ...