Speaker
Dr
Beatrix Hiesmayr
(Vienna University)
Description
Two hundred years ago Thomas Young taught us that photons interfere.
Nowadays also
experiments with very massive particles, like the fullerenes,
have impressively
demonstrated that fundamental feature of quantum mechanics. Later
studies
have shown
that the knowledge on the path through the double slit is the
reason why
interference
is lost. The gedanken experiment of Scully and Druehl in 1982
surprised the
physics
community, if the knowledge on the path of the particle is
erased, interference
is
brought back again.
We first show two setups of a kaonic quantum eraser which are
conceptually
analog to
performed photon experiments. However, for kaons we have two more
setups
which are
only provided by this quantum system. These new possibilities
prove in a new
way the
very concept of an eraser and moreover are testable at DAFNE.
Primary author
Dr
Beatrix Hiesmayr
(Vienna University)
