3 short stories about the quantum <-> gravity interface


Livine, E. (2023). 3 short stories about the quantum <-> gravity interface. Perimeter Institute. https://pirsa.org/23100093


Livine, Etera. 3 short stories about the quantum <-> gravity interface. Perimeter Institute, Oct. 12, 2023, https://pirsa.org/23100093


          @misc{ pirsa_PIRSA:23100093,
            doi = {10.48660/23100093},
            url = {https://pirsa.org/23100093},
            author = {Livine, Etera},
            keywords = {Quantum Gravity},
            language = {en},
            title = {3 short stories about the quantum <-> gravity interface},
            publisher = {Perimeter Institute},
            year = {2023},
            month = {oct},
            note = {PIRSA:23100093 see, \url{https://pirsa.org}}

Etera Livine French National Centre for Scientific Research (CNRS)

Talk Type Scientific Series


Building on the fact that quantum uncertainty is a dynamical degree of freedom in itself in quantum mechanics, I will start with the remark that its evolution can provide a notion of intrinsic clock. To illustrate the non-triviality of this idea, we’ll check the dynamics of the uncertainty if gravitizing quantum mechanics into a non-linear Schrödinger equation, and will see that it (surprisingly?) follows the same trajectories as planetary orbits. A third thread will come from the black hole mini-superspace in general relativity. We will see that, assuming that the quantization preserves all the symmetries of the theory, universal quantum gravity corrections can also be written as a non-linear Schrödinger equation, leading to a non-trivial evolution of the “classicality” of black hole wave-packets along the radial coordinate.


Zoom link: https://pitp.zoom.us/j/95808416532?pwd=cHJnVXpzdDd3eXdFbUlMamFsMFV3UT09