Eric Chitambar received his B.S. degree in physics from the University of Notre Dame, Indiana, USA in 2005 and his Ph.D. degree in physics from the University of Michigan in Ann Arbor, Michigan, USA, in 2010 under the direction of Prof. Yaoyun Shi. He served as a post-doctoral researcher at the University of Toronto in Canada and later at the Perimeter Institute for Theoretical Physics in Waterloo, Canada. In 2012, Dr. Chitambar joined the physics department at Southern Illinois University in Carbondale, Illinois, USA.
He is currently a Professor in the Department of Electrical and Computer Engineering at the University of Illinois Urbana-Champaign. His research interests include quantum communication and cryptography, entanglement theory, and general quantum resource theories. His work tackles a broad range of problems, from quantum foundations to applied information theory and experimental protocols.
Presentation Title:
Quantum Position Verification and Information Processing under Spacetime Constraints
Presentation Abstract:
Quantum position verification (QPV) is a cryptographic task in which the spatial location of an untrusted agent is certified using the principles of quantum mechanics and special relativity. The problem of QPV has deep connections to computational complexity and branches of quantum gravity. In this talk I will introduce the task of QPV and describe how it fits under the general framework of information processing with spacetime constraints. I will then turn to recent theoretical work analyzing the structure of QPV protocols in which the distribution of product states is used to certify a spatial location, and an honest prover must perform a joint measurement on the signals.  This particular class of QPV protocols reveals separations in security based on whether the adversaries are restricted to classical versus quantum communication.Â