- British physicist
who in 1964 devised a test to verify a point in quantum theory: whether
two particles that were once connected are always afterwards interconnected
even if they become widely separated. As well as investigating fundamental
problems in theoretical physics, Bell contributed to the design of
particle accelerators.
Bell worked for 30 years at CERN, the European research laboratory
near Geneva, Switzerland. He demonstrated how to measure the continued
interconnection of particles that had once been closely connected,
and put forward mathematical criteria that had to be obeyed if such
a connection existed, as required by quantum theory. In the early
1980s, a French team tested Bell's criteria, and a connection between
widely separated particles was detected.
|