Our group investigates topological features in optical systems to discover new physics and develop optical devices with built-in protection.
Welcome to the Hafezi Research Group
Recent advances in nanophotonic devices have enabled a variety of new technologies, including light-based classical information processing as a promising alternative to electronic signals in future circuits, non-classical light generation, and potential avenues for quantum information sciences. Our group aims to theoretically and experimentally investigate various quantum properties of light-matter interaction for applications in quantum information processing and sensing. Moreover, we explore associated fundamental phenomena, such as many-body physics, that could emerge in such physical systems.
We explore many-body quantum dynamics of strongly interacting systems. Specifically, we investigate novel effects specific to optical systems, such as dissipative-driven phenomena.
We exploit hybrid approaches to probe and manipulate single-particle and many-body quantum states, such as optical manipulation of electronic topological states.
May 09, 2018
In a recent Feature Article in Optics and Photonics News of OSA, we review the basic concepts in topological photonics and recent developments in the field. The goal was to make it accessible to a wide audience.
March 01, 2018Thermal management and non-reciprocal control of phonon flow via opto-mechanics in Nature Communications
Engineering phonon transport in physical systems is a subject of interest in the study of materials, and plays a crucial role in controlling energy and heat transfer.
February 10, 2018
The application of topology in optics has led to a new paradigm in developing photonic devices with robust properties against disorder.
January 10, 2018
Recently, we theoretically showed how to realize two-component fractional quantum Hall phases in monolayer graphene by optically driving the system. A laser is tuned into resonance between two Landau levels, giving rise to an effective tunneling between these two synthetic layers.
November 22, 2017
Topology plays a central role in the modern condensed matter, quantum information and high-energy physics. Certain Geometric manipulation of the manifold which supports a particular topological, known as the modular transformations, can be used as fault-tolerant logical operations in the context of both topological phases and topological quantum error correction codes. We realized that such transformations can be implemented in a single shot (i.e., with constant circuit depth), using local transversal SWAP operations between patches in a folded system with twist defects (wormholes in the synthetic dimension).