PIRSA:25100048

Video URL

https://pirsa.org/25100048

Probing Conformal Boundary/Defect and Spin Liquid through “Snapshots”

(2025). Probing Conformal Boundary/Defect and Spin Liquid through “Snapshots”. Perimeter Institute for Theoretical Physics. https://pirsa.org/25100048

Probing Conformal Boundary/Defect and Spin Liquid through “Snapshots”. Perimeter Institute for Theoretical Physics, Oct. 24, 2025, https://pirsa.org/25100048 

          @misc{ scivideos_PIRSA:25100048,
            doi = {},
            url = {https://pirsa.org/25100048},
            author = {},
            keywords = {Quantum Matter},
            language = {en},
            title = {Probing Conformal Boundary/Defect and Spin Liquid through {\textquotedblleft}Snapshots{\textquotedblright}},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2025},
            month = {oct},
            note = {PIRSA:25100048 see, \url{https://scivideos.org/pirsa/25100048}}
          }
Cenke Xu
Talk numberPIRSA:25100048
Source RepositoryPIRSA
Collection
Talk Type Other
Subject

Abstract

Snapshots are the standard data produced in many quantum simulators. In this talk we demonstrate that they encode far more information than conventional correlation functions. I’ll show how snapshot data can probe conformal boundaries and defects in quantum many-body systems. In particular, from local-spin snapshots we can extract the universal conformal defect (boundary) entropy of the Ising CFT, as well as the “line of defect fixed points”. The protocol extends naturally to higher-dimensional CFTs. I’ll then discuss a construction of a strongly interacting spin-liquid wave function using free or weakly interacting fermions available on current simulators, and I’ll share preliminary results applying our proposal to real experimental data.