Xi Dong

Xi Dong is an Assistant Professor in the Department of Physics at the University of California, Santa Barbara (UCSB). His research spans foundational questions in quantum gravity, quantum field theory, string theory, and cosmology, with a particular focus on the holographic duality between string theory and quantum field theories, and the role of quantum entanglement in the emergence of spacetime.

Education and Career:

• Ph.D. in Physics, Stanford University
• B.S. in Mathematics and Physics, Tsinghua University
• Postdoctoral Scholar, Stanford University
• Member, Institute for Advanced Study, Princeton
• Assistant Professor, University of California, Santa Barbara (since 2017)

Research Interests:

Xi Dong's research lies at the intersection of quantum gravity and quantum information, exploring how spacetime and gravity might emerge from underlying quantum entanglement structures. His work includes:

• Understanding holographic entropy and the Ryu-Takayanagi formula
• Investigating quantum error correction in AdS/CFT
• Studying black hole interiors and the information paradox
• Exploring the role of replica wormholes and entanglement wedges
• Developing geometric and algebraic approaches to gravitational path integrals

Publications:

His recent work includes studies on geometric entropies, holographic entanglement negativity, gravitational path integrals, and the emergence of spacetime from entanglement. These publications are widely cited and contribute significantly to the theoretical physics community.

Contact:

• Email: xidong@ucsb.edu
• Office: Broida 6103, UCSB Department of Physics
• Website: Xi Dong site