Season 4 Episode 4 PhD Seminar

Wednesday 8 Jun 2022, 18:00 → 19:45 Europe/Rome

Aula Rasetti (VEF) and Zoom

20th meeting of physics PhD seminar series

If you want to attend in person, sign the doodle here:
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https://uniroma1.zoom.us/j/88384154993
Meeting ID: 883 8415 4993
Passcode: 385588

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1 Making time for quantum gravity

Due to gravity being a constrained theory, the Universe evolution is plagued by a “freezing” in the canonical quantum formalism, since the Dirac scheme implies no evolution in time. A possible solution is to define a relational time from existing variables to regain standard QFT evolution, and one can even go to the next order with a perturbative expansion, to infer the quantum gravitational corrections to the quantum matter dynamics. I will briefly address how time can be defined using a reference frame fixing (emerging as a fluid) and the emergence of quantum gravity corrections.

Speaker: Giulia Maniccia

2 Dicussion