PhD Comprehensive Exam | Jiayue Yang, Probing Spacetime through Relativistic Quantum Information

Monday, April 20, 2026 10:30 am - 11:30 am EDT (GMT -04:00)

Location

MC 5417

Candidate

Jiayue Yang | Applied Mathematics, University of Waterloo

Title

Probing Spacetime through Relativistic Quantum Information

Abstract

This talk is motivated by an intriguing question at the interface of quantum theory and gravity: how can quantum information be used to probe the nature and structure of spacetime in an operational way? I will begin by providing background on relativistic quantum information and holography. In relativistic quantum information, one studies quantum information processing in relativistic settings, while in holography, one investigates how bulk gravitational physics is encoded in data on a lower-dimensional boundary. I will then present the progress made to date, including results on magic resource harvesting in both anti-de Sitter spacetime and conformal field theory. Finally, I will outline my research plan, with the goal of identifying quantum operational signatures of both bulk and boundary physics. Overall, this project aims to establish relativistic quantum information tools as experimentally accessible probes of spacetime, offering a new perspective at the interface of quantum information and quantum gravity.