The Corners of 1+1 Dimensional Quantum Gravity

          @misc{ scivideos_PIRSA:24050048,
            doi = {10.48660/24050048},
            url = {https://pirsa.org/24050048},
            author = {Varrin, Ludovic},
            keywords = {Quantum Gravity},
            language = {en},
            title = {The Corners of 1+1 Dimensional Quantum Gravity},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2024},
            month = {may},
            note = {PIRSA:24050048 see, \url{https://scivideos.org/index.php/pirsa/24050048}}
          }
          

Abstract

The concept of symmetries is crucial in our comprehension of modern theoretical physics. The Corner Proposal introduces a novel framework where symmetries are reinstated as foundational principles in our understanding of gravity. This aims to describe gravity using a language that is more adapted to quantization. In this presentation, I will start by providing an overview of the essential results leading to the main ideas the proposal. This will then allow me to state the proposal in the general case to then specialize to 1+1 dimensional gravity.

Finally, I will present elements of our recent research applying the proposal to the case of 1+1 dimensional gravity. I will demonstrate the framework's promising potential by calculating the entanglement entropy between two spatial regions—a significant challenge in quantum gravity. The result is the 1+1 dimensional equivalent of the well-established Bekenstein-Hawking area law governing the entropy of gravitational systems with the expected behavior of the quantum corrections.

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