Is it possible to remotely verify someone’s location by only sending signals? Secure position verification is classically i mpossible due to general spoofing attacks\, but becomes possible with quantum physics. The unclonability of quantum information and the unce rtainty principle give rise to quantum position verification (QPV) pro tocols that can mitigate spoofing attacks and securely certify an agen t’s location. \n \nIn this talk I will give an overview of quantum p osition verification and some visions of its cryptographic application s. Furthermore I will describe the surprising connections between QPV and deep questions in quantum information theory\, theoretical compute r science\, and quantum gravity.
\n \nBio: \nHenry Yuen is the Srivani Family Associate Professor of Computer Science in the Departme nt of Computer Science. He is a theoretical computer scientist whose g oal is to understand the fundamental principles of computation and com munication in a universe governed by quantum physics (such as ours). T hese days\, he studies questions at the interface of quantum informati on theory\, computational complexity theory\, and cryptography.
URL:https://www.physics.wisc.edu/events/?id=9601 END:VEVENT END:VCALENDAR