Abstract: Entanglement is one of the key features of quantum mechanics. It lies at the heart of most cryptographic applications of quantum technologies and is necessary for computational speed-ups. However, given a specific information processing task, it is challenging to find the best way to harness entanglement and we are yet to uncover the full range of its potential applications. We will see that nonlocal games provide a rigorous framework for studying quantum entanglement and the advantage that it can offer. We will take a closer look at the question of how much entanglement can be needed to play a nonlocal game optimally. We will then use games requiring large amounts of entanglement to build protocols for certifying proper functioning of untrusted quantum devices.
NOTE: The meeting will be locked at 4:15. Contact mjunge@illinois.edu, if you need to get in later.
