Thursday, October 30, 2014, 16:00
WHGA/Auditorium
Michel Bauer, CEA Saclay
Abstract:
In 1913, Niels Bohr wrote his groundbreaking paper "On the Constitution
of Atoms and Molecules", were already mentioned quantum jumps between
energy levels. Later on, he was also the leader of the Copenhagen
interpretation of measurement. Almost a century later, thanks to major
progresses in fast electronics and low temperature physics, the delicate
manipulation of simple quantum systems, and the observation of quantum
jumps and quantum trajectories, have become a reality. These
observations teach us important things about measurement, with deep
theoretical implications, but also with practical stakes for the
conception of the still elusive quantum computers. After a brief and
targeted overview, we shall focus in this talk on a few recent
experiments dedicated to simple quantum systems and on their
mathematical interpretation which involves some remarkable probabilistic
results.