Available student project - Storing quantum entangled states of light

Research fields

  • Quantum Science and Technology
  • Photonics, Lasers and Nonlinear Optics
Quantum memory

Project details

In quantum physics, entangled particles remain connected so that actions performed on one instantaneously affect the state of the other, even when separated by great distances.

It is our aim to experimentally investigate this phenomenon in parameter regimes which until recently have been inaccessible. The underlying technology behind these experiments is based on the storage and creation of non-classical states of light using rare-earth doped crystals. Critical to accessing these new regimes is the capacity of these crystals to store quantum states for many hours.

In this experiment you will entangle the quantum states of two well-separated crystals and observe the decrease in the fidelity of the entanglement with the passage of time. Is the rate of loss of entanglement consistent with the current theory of quantum mechanics?

Although primarily a PhD project, honours and undergraduate projects developing aspects of this experiment are also available.

Project suitability

This research project can be tailored to suit students of the following type(s)
  • 3rd year special project
  • PhB (2nd or 3rd year)
  • Honours project
  • Phd or Masters
  • Vacation scholar

Contact supervisor

Sellars, Matthew profile

Other supervisor(s)

Ahlefeldt, Rose profile

Ferguson, Kate profile
Postdoctoral Fellow

Updated:  24 July 2021/ Responsible Officer:  Director, RSPhys/ Page Contact:  Physics Webmaster