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.
Quantum Simulation
Given the slow but steady rise of quantum simulators, what are the hardware-efficient ways to implement chemical and physical models? How can we verify that we have implemented the right Hamiltonian? How can we efficiently characterize many-body states on such systems and measure them? Any quantum system is noisy, how can we find efficient ways to characterize and combat the noise?
Relevant Publications:
Quantum optics meets correlated electrons
One of the key challenges in the development of quantum technologies is the control of light-matter interaction at the quantum level where individual excitations matter. During the past couple of decades, there has been tremendous progress in controlling individual photons and other excitations such as spin, excitonic, phononic in solid-state systems. Such efforts have been motivated to develop quantum technologies such as quantum memories, quantum transducers, quantum networks, and quantum sensing.
Topological photonics
Physicists classify and understand systems in terms of many properties; color, mass, length and microscopic symmetries are familiar examples. Another interesting feature is a system’s topology, or how its parts connect. As an example, a circular linked necklace can be deformed into an oval or a rectangle without changing the topology, since the links remain connected in the same way. But the necklace can only be made into the topologically distinct straight line if it is cut or its clasp is opened.
Strongly correlated electron–photon systems
In a Nature Perspective, we highlight a paradigm based on controlling light–matter interactions that provides a way to manipulate and synthesize strongly correlated quantum matter. Photon-mediated superconductivity, cavity fractional quantum Hall physics and optically driven topological phenomena in low dimensions are among the frontiers discussed in this Perspective.
Boson Sampling for Generalized Bosons (Video)
Recent progress on quantum random sampling protocols such as random circuit sampling (interacting) and boson sampling (non-interacting) demonstrate an advantage of quantum information processing. Is there an intermediately interacting regime where the random sampling becomes intractable in a classical setting and becomes feasible on a quantum device? We found that such an intermediately interacting regime could be feasibly utilized by a generalization of current boson sampling protocols.
Excursions at the Interface of Topological Phases of Matter and Quantum Error Correction
Dissertation Committee Chair: Professor Maissam Barkeshli
Committee:
Professor Sankar Das Sarma
Professor Jay Deep Sau
Professor Michael Gullans
Professor Mohammad Hafezi