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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Astrid Eichhorn


PIRSA:18060064  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Towards the top quark mass from asymptotic safety
Speaker(s): Astrid Eichhorn
Abstract:

I will discuss a proposed mechanism to fix the value of the top quark mass from asymptotic safety of gravity and matter, and will review the status of the proposal.

Date: 08/06/2018 - 2:00 pm

PIRSA:18060023  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Shedding light on dark matter in asymptotic safety
Speaker(s): Astrid Eichhorn
Abstract: The nature of dark matter is one of the outstanding riddles of fundamental physics. Here, I will discuss first steps to explore dark matter in the asymptotic safety paradigm. As a first example, I will show indications for an asymptotically safe fixed point in the Higgs portal to fermionic dark matt... read more
Date: 06/06/2018 - 11:15 am

PIRSA:17110118  ( MP4 Medium Res , MP3 , PDF ) Which Format?
An asymptotically safe point of view on the gravitational path integral
Speaker(s): Astrid Eichhorn
Abstract:
Date: 13/11/2017 - 2:00 pm

PIRSA:17050051  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Renormalization Group flows of spacetime
Speaker(s): Astrid Eichhorn
Abstract: I will discuss the use of (functional) Renormalization Group in models of quantum gravity. I will highlight the challenges that occur in continuum approaches to quantum gravity, such as asymptotically safe gravity, as well as challenges in discrete approaches, such as tensor models.
Date: 16/05/2017 - 2:00 pm

PIRSA:17030050  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The asymptotic safety paradigm for quantum gravity and matter
Speaker(s): Astrid Eichhorn
Abstract: In this talk, I will discuss the asymptotic safety paradigm, and will highlight that it can provide a framework for a predictive ultraviolet completion for gravity and matter. Specifically, I will discuss compelling hints that exist for the realization of asymptotic safety in pure gravity, and will ... read more
Date: 02/03/2017 - 2:30 pm

PIRSA:15060029  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Debate on RG flow and SD
Speaker(s): Astrid Eichhorn
Abstract:
Date: 25/06/2015 - 4:00 pm

PIRSA:14050125  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Asymptotic safety – a quantum theory of gravity and matter
Speaker(s): Astrid Eichhorn
Abstract:
Date: 21/05/2014 - 5:40 pm

PIRSA:14040109  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Why matter matters in quantum gravity
Speaker(s): Astrid Eichhorn
Abstract: I will argue that a fundamental theory of quantum gravity that is applicable to our universe must include matter degrees of freedom. In my talk I will focus on the option that these are fundamental, in contrast to low-energy effective, degrees of freedom, and must thus be included in the microscopic... read more
Date: 25/04/2014 - 9:40 am

PIRSA:13070073  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Phenomenology - 3
Abstract:
Date: 25/07/2013 - 2:30 pm
Collection: Loops 13

PIRSA:12100121  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Effective field theory framework in QG
Abstract: Gravity Induced Grand UnificationMotivated by the lack of evidence for physics beyond the Standard Model in the TeV region, we discussed an alternative path for grand unification. We show that simple grand unification models based on e.g. SU(5) can work successfully even without low scale supersymme... read more
Date: 25/10/2012 - 3:00 pm

PIRSA:12100104  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Dynamical Dimensional Reduction
Abstract: Dynamical dimensional reduction and Asymptotic SafetyThe effective average action approach to Quantum Einstein Gravity (QEG) is discussed as a natural framework for exploring the scale dependent Riemannian geometry and multifractal micro-structure of the effective spacetimes predicted by QEG. Their ... read more
Date: 24/10/2012 - 11:30 am

PIRSA:11100112  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Science in the Pub - How Does Science Work?
Abstract: One of humanity's defining traits is to be deeply curious about the world around us. We've all looked up at the night sky, marvelled at rainbows, and been awed by the power of lightening. We've also wondered how these and other natural phenomena work. This curiosity-driven process of investigatio... read more
Date: 18/10/2011 - 7:30 pm

PIRSA:10120025  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Aspects of confinement from the functional Renormalization Group
Speaker(s): Astrid Eichhorn
Abstract: The functional Renormalization Group is a continuum method to study quantum field theories in the non-perturbative regime. In Yang-Mills theory, it can be used to relate fully nonperturbative low-order correlation functions in particular gauges to observables such as confinement order parameters. As... read more
Date: 01/12/2010 - 4:00 pm
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