17 Dec
2003
17 Dec
'03
11:17 p.m.
Could someone (other than Jim Choate) explain the mechanism behind the Aharonov-Bohm effect, where a quantum field propagating via two distinct paths finds its wavefunction phase shifted by the amount of magnetic flux enclosed, even if it is completely shielded from the magnetic field, and traverses only regions of space where B=0. This has apparently been experimentally verified, and is a leading candidate for reading the state of quantum dots. -- Sponsor the DES Analytic Crack Project http://www.cyberspace.org/~enoch/crakfaq.html