Matter-Gravity Entanglement in Quantum Gravity


Husain, V. (2019). Matter-Gravity Entanglement in Quantum Gravity . Perimeter Institute. https://pirsa.org/19030000


Husain, Viqar. Matter-Gravity Entanglement in Quantum Gravity . Perimeter Institute, Mar. 07, 2019, https://pirsa.org/19030000


          @misc{ pirsa_19030000,
            doi = {10.48660/19030000},
            url = {https://pirsa.org/19030000},
            author = {Husain, Viqar},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Matter-Gravity Entanglement in Quantum Gravity },
            publisher = {Perimeter Institute},
            year = {2019},
            month = {mar},
            note = {PIRSA:19030000 see, \url{https://pirsa.org}}

Viqar Husain University of New Brunswick (UNB)

Talk Type Scientific Series


Quantum gravity may be viewed as a bipartite matter-geometry system. Evolution of matter-geometry entanglement entropy is an interesting question for issues such as the emergence of QFT on curved spacetime from quantum gravity: emergence would require initial states to evolve to product states. We study this question in a cosmological model. We give numerical evidence that matter-geometry entanglement entropy increases indefinitely (with respect to a relational time) for apparently arbitrary initial states. This result raises the question of whether matter and geometry remain entangled in a large Universe.