【Date and Time】4-June-2026 10:30am

【Venue】Room 320

【Host】Kristian Ashley Patrick (BAQIS)

【Title】Enabling quantum-enhanced technology through temporal correlations

【Abstract】

The theory behind how to harness the properties of quantum physics for a variety of applications, from quantum computing to quantum sensing, has long been understood.  By generating exotic states of light/matter, we are able to utilise non-classical correlations to obtain potentially enormous enhancements over classical devices.  Such theories have experimental limitations, such as the ability to generate these states, manipulate and control them and eventually read-out the information.  Nevertheless, monumental progress has been made in recent years, allowing for us to enter the so-called "NISQ era" of quantum technology.

A clear obstacle at this stage is the role of noise, preventing the development of large-scale quantum enhancements.  One way of somewhat circumventing this noise is to utilise it to our advantage.  By carefully analysing open quantum systems and fully accounting for the quantum backaction of the continuous weak measurements, we are capable of still maintaining quantum advantage, even over long periods of time, without the need for as meticulous isolation of the system of interest.  Nevertheless, this itself prevents challenges.  In particular, the advancement of experiments has led to a lag in the theory behind such processes, due to the numerical complexity of modelling such systems.

In this talk, I will overview some of the quantum-enhancements available to us by utilising temporal correlations as a resource.  I will then discuss ways in which we are able to utilise algorithmic and machine-learning based approaches to overcome the numerical bottlenecks, opening the door towards real-time quantum information processing.  The applications of such processes will pave the way towards novel quantum sensors, as well as providing the tools necessary for generating the quantum resources needed for other fields of quantum information.

【Speaker】 

 Lewis Clark was awarded his PhD in theoretical quantum optics from the University of Leeds in 2017.   Immediately following his PhD, he worked at Newcastle University investigating the quantum coherence properties in hot electron quantum optics.  He then moved to the University of Warsaw in 2020 to work on quantum sensing in continuously monitored quantum systems, before then moving to Palacky University, conducting work on generating non-Gaussian states in quantum optomechanical systems.  He is now based at A*STAR in Singapore, working in the quantum sensing group of the Quantum Innovation Centre (Q.InC).