|Associate Professor (joint in EE)|
Our research focuses on spin-systems in solids for experimental quantum information processing (QIP) and sensing applications. We use optical techniques to study and control spin dynamics in semiconductors and diamond. Coupled optical-spin systems are integrated into nanophotonic devices to enable optical communications between spins for QIP and to increase magnetic sensitivity in sensing applications.
|Trapped Ion Quantum Computing|
We work on experimental implementation of quantum computation and quantum communication using single trapped ions and single photons, and the hybrid atom-photon entangled state. Apart from the quantum information applications, we are also interested in testing the fundamental principles of quantum mechanics.
One research theme in our group is the study of interacting quantum mixtures of atoms at 100 nanoKelvins, and preparation and studies of polar diatomic molecules. These systems can precisely explore fundamental few- and many-body physics and are applicable towards quantum simulation and information science. The second is the development of an atom interferometer using Bose-Einstein condensates to measure the fine structure constant and precisely test the theory of quantum electrodynamics.
|Associate Professor (joint in MSE)|
My group investigates new physics arising from novel 2D electronic materials for potential quantum information and quantum computation applications. We are very interested in two systems. The first is atomically thin transition metal dichalcogenides. This system provides strongly coupled spin-valley degrees of freedom, which leads to long relaxation and coherence time of spins and electrons in valleys. The second system is three-dimensional topological insulators. This new phase of quantum matter provides helical surface spin states which are protected by bulk topological invariant and immune to non-magnetic scattering. By nanomaterial synthesis, device fabrication, optical and transport measurements, we aim to understand the fundamental and technical aspects of these material systems for new quantum device applications.