Deep Microscopic Quantum Electrodynamics: Spotlight on Quantum-Light Science and Technology

Abstract:

Light-matter interaction is essential to many quantum information systems, enabling quantum-enhanced information processing and sensing. In this talk, I will showcase a synergistic development of predictive computational strategies to guide the emerging area of quantum-light science and technology. First, I will discuss the development of a deep microscopic quantum electrodynamics (QED) framework coupled with scientific software development to unravel the sub-nanoscale optical phases of photonic materials. Further, I will show how this photonic material design framework has led to the development of spectro-polarimetric imagers to capture hidden polarization data, spin-polarized infrared beacons for defense technology, and deep ultra-violet radiation sources for semiconductor metrology. Second, I will discuss our efforts to develop a full stack of multiscale computational QED framework to design hybrid quantum devices. I will show the applicability of the computational design guidelines to develop novel quantum devices including superconducting single-photon detectors, topological infrared absorbers, and gate circuits for silicon and nitrogen vacancy center-based quantum computing architectures. Looking ahead, I will discuss how this computational quantum design framework inspires the atomic-scale design of photonic materials and hybrid quantum devices and establish a roadmap for advancing quantum sensing, communication, and computing.

Bio:

Sathwik Bharadwaj is a Research Scientist at the Elmore School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, USA, working with Prof. Zubin Jacob. He obtained his Ph.D. from Worcester Polytechnic Institute, USA. His research interest focuses on developing predictive computational and theoretical methods for designing emerging photonic materials and hybrid quantum devices for quantum sensing, communication, and computing technologies. He has received several accolades for his research, including the Japan Computational Mathematical Science and Engineering Lecture Award, Sigma Xi Doctoral Dissertation Award, the Bravo+ Award from Purdue University, USA, and Gold Medal from the University of Hyderabad, India.