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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:C20031 - Quantum Gravity 2020PODCAST Subscribe to podcast

Quantum Gravity 2020

Organizer(s): Bianca Dittrich   William Donnelly   Astrid Eichhorn   Steffen Gielen   Robert Myers  

Collection URL: http://pirsa.org/C20031


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PIRSA:20070000  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Welcome and Opening Remarks
Speaker(s): Bianca Dittrich
Abstract:
Date: 13/07/2020 - 9:20 am

PIRSA:20070001  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Approaches to Quantum Gravity: Key Achievements and Open Issues
Speaker(s): Hermann Nicolai
Abstract: This talk will provide an overview of current approaches to quantum gravity, with their respective merits and open problems (`comparative quantum gravity'). To this aim I will focus on some key issues that must be addressed by all approaches
Date: 13/07/2020 - 9:30 am

PIRSA:20070002  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum gravity from the loop perspective
Speaker(s): Alejandro Perez
Abstract: I will summarise the main achievements of loop quantum gravity and provide my view on the issues that I consider of central importance for present and future efforts.
Date: 13/07/2020 - 12:30 pm

PIRSA:20070003  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Lessons for quantum gravity from quantum information theory
Speaker(s): Daniel Harlow
Abstract: Gravity is unique among the other forces in that within general relativity we are able to do calculations which, when properly interpreted, give us information about non-perturbative quantum gravity. A classic example is Bekenstein and Hawking's calculation of the entropy of a black hole, and a mor... read more
Date: 13/07/2020 - 1:15 pm

PIRSA:20070004  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Understanding of QG from string theory
Speaker(s): Herman Verlinde
Abstract:
Date: 14/07/2020 - 9:00 am

PIRSA:20070019  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Progress in horizon thermodynamics
Speaker(s): Aron Wall
Abstract: I will review some developments in horizon thermodynamics from the past few years, highlighting especially the distinct notions of entropy that seem to apply to dynamically evolving black holes, and their extension from classical to semiclassical gravity.
Date: 14/07/2020 - 9:45 am

PIRSA:20070006  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Asymptotically Safe Amplitudes from the Quantum Effective Action
Speaker(s): Frank Saueressig
Abstract: This talk will feature a brief introduction to the gravitational asymptotic safety program before reviewing the current status of the field. Motivated by recent developments, I will introduce the form factor formulation of the quantum effective action and explain how various quantum gravity programs... read more
Date: 14/07/2020 - 11:00 am

PIRSA:20070007  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The Remarkable Roundness of the Quantum Universe
Speaker(s): Renate Loll
Abstract: It has taken several decades of exploring statistical models of quantum gravity (aka nonperturbative gravitational path integrals) to understand how diffeomorphism-invariance, unitarity and the presence of a causal structure can be simultaneously accounted for in a lattice gravity framework. Causal ... read more
Date: 14/07/2020 - 11:45 am

PIRSA:20070008  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The Quantum Dynamics of Causal Sets: Directions and Challenges
Speaker(s): Sumati Surya
Abstract: I will begin with a short review of causal set theory (CST) focusing on the features that distinguish it from other approaches to quantum gravity. Most striking is a characteristic non-locality due to the Lorentz non-violating Poisson-discreteness in the continuum approximation. The discrete... read more
Date: 15/07/2020 - 9:00 am

PIRSA:20070009  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Towards quantum simulators for fundamental physics
Speaker(s): Silke Weinfurtner
Abstract: Analogue gravity summarises an effort to mimic physical processes that occur in the interplay between general relativity and field theory in a controlled laboratory environment. The aim is to provide insights in phenomena that would otherwise elude observation: when gravitational interactions are st... read more
Date: 15/07/2020 - 9:45 am

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