A Matter of Relativity? Copyright 2006/2007 James A. Tabb Part
5: Entangled Particles Selecting which atom we use with careful
attention to its excitation states can create entangled
particles. Some atoms emit two photons at a time or very closely
together, one in one direction, the other in the opposite
direction. These photons also have a property that one spins or
is polarized in one direction and the other always spins or is
polarized at right angles to the first. They come in pairs such
that if we conduct an experiment on one to determine its
orientation, the other’s orientation becomes known at once. They
are “entangled”. Figure 10 – Entangled Particles All of this was
involved in a famous dispute between Einstein and Bohr where
Einstein devised a series of thought experiments to prove
quantum measurement theory defective and Bohr devised answers.
The weirdness, if you want to call it that, is the premise that
the act of measurement of one actually defines both of them and
so one might be thousands of m