PIRSA:23060099

Video URL

https://pirsa.org/23060099

Asymptotic entanglement and celestial holography

Chen, H.Z. (2023). Asymptotic entanglement and celestial holography. Perimeter Institute for Theoretical Physics. https://pirsa.org/23060099

Chen, Hong Zhe. Asymptotic entanglement and celestial holography. Perimeter Institute for Theoretical Physics, Jun. 09, 2023, https://pirsa.org/23060099 

          @misc{ scivideos_PIRSA:23060099,
            doi = {10.48660/23060099},
            url = {https://pirsa.org/23060099},
            author = {Chen, Hong Zhe},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Asymptotic entanglement and celestial holography},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2023},
            month = {jun},
            note = {PIRSA:23060099 see, \url{https://scivideos.org/index.php/pirsa/23060099}}
          }

Hong Zhe (Vincent) Chen University of California, Santa Barbara

Talk numberPIRSA:23060099
DOI10.48660/23060099
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

While entanglement has been examined extensively in AdS/CFT, it has avoided significant attention in the study of celestial holography and asymptotic symmetries relevant to asymptotically flat spacetime. I will present work that considers the entanglement of a Milne patch for Maxwell theory in Minkowski spacetime from the perspective of celestial holography. In the Minkowski vacuum, we find that the Milne patch is thermally entangled. We interpret the thermal entangling operator that builds the Minkowski vacuum from the Milne vacuum as an interaction term in the celestial CFT. We further examine the edge modes of the Milne patch, assigning them a physical interpretation as fluctuations in Milne asymptotic charge. Interestingly, we find that the constraint governing these edge modes includes sources that avoid the Minkowski interior. Altogether, by studying entanglement along the extra holographic direction present in celestial holography but absent in AdS/CFT, our work bridges a critical gap between our understanding of entanglement in the latter and the physically relevant setting of asymptotically flat spacetime.

Zoom Link: TBD