Wednesday,
February 12, 2003, 2:00PM.
Half Dome, 3L.
Professor
Sandu Popescu
HewlettPackard
Visiting Research Professor
Mathematical
Sciences Research Institute, Berkeley
(on leave from
University of Bristol)
Quantum
nonlocality
One
of the most exotic aspects of quantum mechanics is quantum
nonlocality. Quantum systems which interacted in the past and
then moved far from each other, remain, in a certain sense,
still connected with one another.
In effect quantum systems can instantaneously
“communicate” with each other (in apparent but not real
contradiction with Einstein’s relativity).
Although the concept of nonlocality was first put
forward more than thirty years ago, by J.
Bell’s critical analysis of the EinsteinPodolskyRosen
paradox, until very recently nonlocality was considered a
fringe and rather unimportant aspect of quantum mechanics.
During the last couple of years however it has become clear
that nonlocality is one of the basic aspects of quantum
mechanics. In
particular, nonlocality is at the core of the new subjects of
quantum information and computation.
In
my talk I will describe in detail, at a very accessible level,
the basic idea of nonlocality and discuss some of its
applications in quantum information.
Host: Gadiel
Seroussi
