HMNTL Seminar - Pushing the performance limit of multi-dimensional quantum transduction

HMNTL Seminar

September 25 - 10 a.m.
Holonyak Micro & Nanotechnology Lab - Room 1000

"Pushing the performance limit of multi-dimensional quantum transduction"

Presenter: Linran Fan, The University of Texas at Austin

Abstract: Extensive efforts have been devoted to engineering and optimizing individual quantum systems targeting disparate quantum applications, such as superconducting circuits for quantum computing, photonic systems for quantum communications, and optomechanical systems for quantum sensing. Future quantum networks need to have the capability to coherently interface different quantum systems, where quantum transduction plays a pivotal role. In this talk, I will present our efforts in developing efficient quantum transducers between different quantum systems. I will start with our recent result in the demonstration of record-high optical nonlinear efficiency, which is critical to improve the quality of quantum state generation and the efficiency of quantum frequency conversion in the optical domain. Next, I will discuss the first superconducting cavity electro-optic device for quantum transduction between superconducting and photonic circuits. Lastly, I will focus on the development of scalable photonic-phononic circuits, where record-high acousto-optic modulation efficiency is demonstrated. 

Bio: Linran Fan is an Assistant Professor in the Chandra Family Department of Electrical and Computer Engineering at The University of Texas at Austin. He received his B.S. in Physics from Peking University in 2011, and his Ph.D. in Electrical Engineering from Yale University in 2017. He worked as a postdoc at the California Institute of Technology in 2018. He joined the Wyant College of Optical Sciences at the University of Arizona as an assistant professor in August 2018. He moved to the Chandra Department of Electrical and Computer Engineering at the University of Texas at Austin in August 2023. His research interests focus on nonlinear interactions between optical photons, superconducting circuits, electron spins, and acoustic waves at the quantum level in a hybrid system of novel integrated devices and materials. Target applications include photonic information processing, communication, and precision measurement enhanced by quantum information science. His research has been recognized by multiple awards including the most recent Google Research Scholar Award.