Date: May 21, 2014 10:31 PM
Author: Sam Wormley
Subject: Proving uncertainty: First rigorous formulation supporting Heisenberg's<br> famous 1927 principle
Proving uncertainty: First rigorous formulation supporting Heisenberg's

famous 1927 principle

> http://phys.org/news/2014-04-uncertainty-rigorous-heisenberg-famous-principle.html

> Nearly 90 years after Werner Heisenberg pioneered his uncertainty

> principle, a group of researchers from three countries has provided

> substantial new insight into this fundamental tenet of quantum

> physics with the first rigorous formulation supporting the

> uncertainty principle as Heisenberg envisioned it.

> In the Journal of Mathematical Physics, the researchers reports a new

> way of defining measurement errors that is applicable in the quantum

> domain and enables a precise characterization of the fundamental

> limits of the information accessible in quantum experiments. Quantum

> mechanics requires that we devise approximate joint measurements

> because the theory itself prohibits simultaneous ideal measurements

> of position and momentum?and this is the content of the uncertainty

> relation proven by the researchers.