Fully programmable quantum machines with all-to-all connectivity via Floquet engineering

Fri, Oct 25, 2019, 4:30 pm to 5:30 pm
Speaker(s): 
Sponsor(s): 
Electrical Engineering

Abstract:

In this talk, I will describe how to achieve fully programmable, all-to-all couplings between a system of N oscillators by using a common bus and a phase-modulation scheme (where the modulations are periodic, and Floquet theory can be used to analyze the system). Such a system could be used to construct quantum annealers, quantum simulators, and quantum neural networks. I will present a proposed concrete implementation using superconducting circuits, and show numerical results demonstrating the application of such a system as a quantum annealer, with an illustration of how our design can achieve dramatically improved performance for solving combinatorial-optimization problems versus the current experimental state-of-the-art quantum annealers.

[1] T. Onodera, E. Ng, P.L. McMahon, arXiv:1907.05483

Bio:

Peter McMahon is an assistant professor in the School of Applied and Engineering Physics at Cornell University. He received his Ph.D. from Stanford University in 2014 for research on semiconductor quantum optics, and subsequently studied the design and construction of special-purpose optical and opto-electronic computers for solving optimization problems as a postdoctoral researcher in Applied Physics at Stanford until his appointment at Cornell in 2019.