Hi all,
This week Janek Denzler will tell us about his master thesis, entitled Semi-device-independent self-testing of unipartite systems based on contextuality. See below for the abstract. We start as usual at 2pm on zoom: https://ethz.zoom.us/j/362994444.
Best,
Joe
Abstract: Self-testing aims to characterize adversarial input-output devices from a minimal set of assumptions, by only interacting with the device classically. The vast majority of protocols rely on Bell non-locality and impose that the device be split into two non-communicating sub-devices. This talk will explore self-testing in a single verifier setting, where our device does not generate entanglement. This forces us to give up device-independence. We discuss the assumptions required by protocols based on the violation of non-contextuality inequalities, some of which are unphysical, and propose a new set of assumptions that facilitate robust self-testing of a unipartite system. Our protocol features a robust quantumness certificate, based on Spekkens contextuality.