Milena D’Angelo
Dipartimento di Fisica
Università degli Studi di Bari
Abstract:
Since the early days of quantum mechanics, physicists have been puzzled
by
the counterintuitive consequences of entangled states. Although there
are
still open questions regarding fundamental issues of quantum theory,
entangled systems have inspired interesting practical applications.
Quantum imaging is one of the most intriguing ones: it combines exciting
applications such as high precision non-local positioning technology and
quantum lithography, to the possibility of investigating the physics
behind quantum entanglement. After demonstrating the possibility of
employing "ghost" imaging as a tool for identifying entanglement in
momentum and position variables, I will focus the attention on two more
applicative topics: 1) The possibility of simulating quantum imaging
classically, that is, without entanglement, and 2) The possibility of
exploiting the strict connection between quantum ``ghost" imaging and
the
historical argument by Einstein, Podolsky, and Rosen, to overcome the
Rayleigh diffraction limit and generate super-resolved images. Both
these
topics will be discussed from both a theoretical and an experimental
perspective.