PIRSA:25030059

Ensembles of open quantum systems as a tool for quantum spacetime

Shandera, S. (2025). Ensembles of open quantum systems as a tool for quantum spacetime. Perimeter Institute. https://pirsa.org/25030059

Shandera, Sarah. Ensembles of open quantum systems as a tool for quantum spacetime. Perimeter Institute, Mar. 11, 2025, https://pirsa.org/25030059 

          @misc{ pirsa_PIRSA:25030059,
            doi = {10.48660/25030059},
            url = {https://pirsa.org/25030059},
            author = {Shandera, Sarah},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Ensembles of open quantum systems as a tool for quantum spacetime},
            publisher = {Perimeter Institute},
            year = {2025},
            month = {mar},
            note = {PIRSA:25030059 see, \url{https://pirsa.org}}
          }

Sarah Shandera Pennsylvania State University

Talk numberPIRSA:25030059
DOI10.48660/25030059
Collection
Talk Type Conference
Subject

Abstract

Observers in a typical gravitational or cosmological setting only have access to part of the spacetime and the degrees of freedom in it. The observer sees an open quantum system, and the complete dynamics of all degrees of freedom can be reconstructed by gluing together the (possibly overlapping) open systems associated with each observer. I will discuss what can be learned from treating familiar laboratory closed systems as ensembles of open systems, and how we can begin to extrapolate from there to systems relevant for cosmology.