Our group aims to theoretically AND experimentally investigate various quantum properties of light-matter interaction for applications in future optoelectronic devices, quantum information processing, and sensing. Moreover, we explore associated fundamental phenomena, such as many-body physics, that could emerge in such physical systems. Our research is at the interface of quantum optics, condensed matter physics, quantum information sciences, and more recently, machine learning.
Proposal for measuring topological invariants in photonic system in Physical Review Letters
Recently, quantum Hall Hamiltonians have been implemented in photonic systems and their corresponding topological edge states have been observed. In electronic systems, it is known that the existence of topological order leads to "quantized conductance''. However, what is not clear is that how the integer values of such topological invariants manifest themselves in an optical realization.
Topologically Robust Transport of Photons in a Synthetic Gauge Field on Arxiv
Electronic transport in low dimensions through a disordered medium leads to localization. The addition of gauge fields to disordered media leads to fundamental changes in the transport properties. For example, chiral edge states can emerge in two-dimensional systems with a perpendicular magnetic field. Here, we implement a synthetic gauge field for photons using silicon-on-insulator technology. By determining the distribution of transport properties, we confirm the localized transport in the bulk and the suppression of localization in edge states.