Prof. Yuan Liu
Department of Electrical Engineering
North Carolina State University

Abstract

Hybrid quantum hardware containing both discrete-variable (DV) qubits and continuous-variable (CV) oscillators offers a new computational paradigm that combines the strengths of both DV and CV processors. In this talk, I will highlight three of my recent efforts in developing novel quantum control protocols and quantum algorithms that unleash the power of quantum computation with oscillators and qubits. The first project constructs hardware-efficient qubits by coupling oscillators to qubits. The second project generalizes quantum signal processing (QSP) from qubits to hybrid CV-DV systems and establishes a set of novel mixed analog-digital QSP algorithms for universal CV-DV state transfer and quantum Fourier transform. The third project proposes a generic quantum sensing framework that can achieve single-shot quantum detection via quantum signal processing interferometry. I will conclude the talk by discussing the opportunities, challenges, and implications that hybrid CV-DV quantum computation brings to physics, chemistry, computer science, and electrical engineering.

 
Brief bio: Yuan Liu is an Assistant Professor of Electrical & Computer Engineering and Computer Science at North Carolina State University. He is also an affiliated faculty in Physics. He received his B.S. in physics from Tsinghua University in Beijing. He received his M.S. in electrical engineering and a Ph.D. in chemical physics from Brown University in Providence, Rhode Island. Prior to joining NC State faculty as an NSF Quantum Computing & Information Science Faculty Fellow, he was a postdoctoral researcher in the Research Laboratory of Electronics and Department of Physics at the Massachusetts Institute of Technology in Boston.