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Quantum science and applications

In addition to the interesting new physics quantum processes and devices are beginning to uncover, these exotic phenomena have important practical applications.

One such area is quantum cryptography the science of sending secret messages via a quantum channel. It uses properties of quantum mechanics to establish a secure key, a process known as quantum key distribution. This key can then be used at a later stage to send encrypted information.

Quantum techniques can also be applied to reducing the noise present in laser beams, a process known as squeezing. We currently have an extensive research program investigating the application of squeezing and other quantum noise reduction techniques in the laser interferometers used to detect gravitational waves.

Selected research highlights

Selected available student research projects

This project investigates the experimental scenario behind a proposal for feedback control of an atom laser. By including realistic paramenters, detector noises and limitations, we aim to construct a feedback control model ready for experimental implementation in the Atom Laser laboratory at the ANU.
This project aims to examine the effects of atomic motion on gradient quantum memories in order to understand the limitations and perspectives of these systems.
It is usually assumed that at a fundamental level the world consists only of quantum things. This project investigates whether classical things might also exist.

Updated:  18 July 2011/Responsible Officer:  Director, RSPE /Page Contact:  Physics Webmaster