Lecturer: Prof. Jonathan Dowling
Affiliation:
Hearne Institute for Theoretical Physics,
Department of Physics & Astronomy,
Louisiana State University
Abstract:
Over the past 20 years, bright sources of
entangled photons have led to a renaissance in
quantum optical interferometry. Optical
interferometry has been used to test the
foundations of quantum mechanics and
implement some of the novel ideas associated
with quantum entanglement such as quantum
teleportation, quantum cryptography, quantum
lithography, quantum computing logic gates, and
quantum metrology. In this paper, we focus on
the new ways that have been developed to
exploit quantum optical entanglement in
quantum metrology to beat the shot-noise limit,
which can be used, e.g., in fiber optical
gyroscopes and in sensors for biological or
chemical targets. We also discuss how this
entanglement can be used to beat the Rayleigh
diffraction limit in imaging systems such as in
LIDAR and optical lithography and microscopes.