PIRSA:25110106

Composable simultaneous purification: The signalling nature of non-signalling correlations (work in progress, Matilde)

Baroni, M. (2025). Composable simultaneous purification: The signalling nature of non-signalling correlations (work in progress, Matilde). Perimeter Institute. https://pirsa.org/25110106

Baroni, Matilde. Composable simultaneous purification: The signalling nature of non-signalling correlations (work in progress, Matilde). Perimeter Institute, Nov. 17, 2025, https://pirsa.org/25110106 

          @misc{ pirsa_PIRSA:25110106,
            doi = {10.48660/25110106},
            url = {https://pirsa.org/25110106},
            author = {Baroni, Matilde},
            keywords = {Quantum Foundations},
            language = {en},
            title = {Composable simultaneous purification: The signalling nature of non-signalling correlations (work in progress, Matilde)},
            publisher = {Perimeter Institute},
            year = {2025},
            month = {nov},
            note = {PIRSA:25110106 see, \url{https://pirsa.org}}
          }

Matilde Baroni LIP6, Sorbonne University and French National Center for Scientific Research (CNRS)

Talk numberPIRSA:25110106
DOI10.48660/25110106
Collection
Talk Type Scientific Series
Subject

Abstract

Purification theorems play a crucial role in quantum information, showing that mathematical models of quantum states and operations relate to physically realisable circuits. A long standing line of research has been concerned with the problem of finding appropriate conditions for simultaneous purification, allowing assemblages of quantum states or operations to be realised by equivalent circuits, up to measurements of auxiliary registers. One such result, the celebrated S-G-HJW theorem, resolves this question for quantum states, while the situation remains much less clear in the more general case of quantum operations.