Quantum optics group

The Einstein-de Haas effect.

The aim is to build and commission a new lab for 3rd year physics that measures the electron spin. One of the original experiments was performed by A. Einstein and W.J de Haas in 1915.  (The same year Einstein was busy publishing General Relativity!)

Professor Ben Buchler

Controlling quantum turbulence in atomic superfluids

Turbulence is one of the most important unsolved problems in modern physics, underpinning universal phenomena from galactic formation to heat and pollutant transport in our atmosphere and oceans. This project seeks to theoretically investigate turbulence in superfluids, and introduce methods of controlling the system dynamics using quantum feedback control.

Dr Zain Mehdi, Professor Joseph Hope, Dr Simon Haine

Atomic magnetometer for exploring physics beyond the standard model and gyroscopy

Atomic sensors are exquisitely sensitive. We aim to model and build a new generation of atomic sensors to measure magnetic fields, rotation and dark matter. 

Professor Ben Buchler

Measuring quantum measurements: precision limits for quantum detector tomography

Develop new methods to determine the ultimate precision of quantum-detector calibration using detector quantum Fisher information. Projects may explore continuous-variable probes, multi-parameter incompatibility, or error-correction strategies for preserving Heisenberg scaling in realistic noisy measurements.

Dr Jie Zhao, Dr Jiayi Qin

Quantum Light for Secure Communications

This project explores how the quantum properties of light can be used to develop new approaches to secure optical communication. Students will investigate squeezed light, optical measurements and information encoding, and explore how quantum correlations can enable communication capabilities beyond conventional optical systems.

Dr Jiayi Qin, Dr Jie Zhao

Next-generation quantum computing with trapped ions

Atoms trapped with electromagnetic fields make excellent building blocks for quantum technologies. This theoretical physics project aims to develop techniques for implementing high-speed logical operations on next-generation trapped-ion quantum computers.

Dr Zain Mehdi, Professor Joseph Hope

Exploring the many body physics in an atomic matterwave system with PT symmetry

Investigating the possible enhancement of sensitivity in atomic sensors with PT symmetry and the underlying many body evolution.

Dr Jessica Eastman, Dr Simon Haine

Collective quantum enhancement in multiparameter estimation

Collective measurements can enhance multiparameter estimation precision by allowing joint measurements on multiple copies. This project investigates the extent to which collective measurements can enhance estimation precision and how close to the fundamental limit one can get without entanglement.

Dr Jie Zhao, Dr Jiayi Qin

Illuminating the quantum vacuum: Looking for new physics in light-by-light interactions

This theoretical physics project aims to study an untested prediction of quantum field theory: the scattering of light by light in empty space. Quantum sensors could be used to detect this effect and shed new light on some of the biggest open problems in theoretical physics, including quantum gravity.

Dr Zain Mehdi, Dr Simon Haine, Professor Joseph Hope

Machine learning for optics and controls

Optical cavities are widely used in physics and precision measurement.  This project will explore the use of modern machine learning methods for the control of suspended optical cavities.

A/Prof Bram Slagmolen, Dr Jiayi Qin, Professor Robert Ward

Quantum Communication for Secure and Anonymous Voting

This project explores how quantum communication could enable secure and anonymous voting between multiple participants. Students will investigate how quantum states of light, communication networks and information processing can be combined to protect both voting information and voter privacy.

Dr Jiayi Qin, Dr Jie Zhao