Towards cross-platform verification in quantum networks

Speaker: Johannes Knorzer, ETH Zurich

Date: Feb 23, 2023 11:00 am

Location: PSC 2136 - speaker will be present at UMD
https://umd.zoom.us/j/96052912971?pwd=SWJGbzlqVnVrQmhOMEhqNWhpZ1dpZz09

Abstract:

Intermediate-scale quantum devices are becoming more reliable, and may soon be harnessed to solve useful computational tasks. At the same time, common classical methods used to verify their computational output become intractable due to their prohibitive scaling of required resources with system size. In this talk, I aim at giving an overview of selected verification strategies. Inspired by recent experimental progress, we analyze efficient cross-platform verification protocols for quantum states and computations. We focus on the pair-wise comparison between distant nodes of a quantum network, identify the most promising protocols and then discuss how they can be implemented in laboratory settings. As a proof of principle, we implement basic versions of these schemeson IBM’s superconducting-qubit processors.

Schedule to meet with Johannes while at UMD - https://docs.google.com/spreadsheets/d/1Zdc-q2ZtaxRhAdiAMDTV_5uQHHhBTm_cV0tTKB8ef1Y/edit?usp=sharing