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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Bianca Dittrich


PIRSA:17110131  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Semi-classical evaluation of the 3D gravity path integral and quasi-local holography
Speaker(s): Bianca Dittrich
Abstract:
Date: 13/11/2017 - 11:35 am

PIRSA:17080004  ( MP4 Medium Res , MP3 , PDF ) Which Format?
From 3D TQFTs to 4D models with defects
Speaker(s): Bianca Dittrich
Abstract: I will explain a general strategy to lift (2+1)D topological phases, in particular string nets, to (3+1)D models with line defects. This allows a systematic construction of (3+1)D topological theories with defects, including an improved version of the Walker-Wang Model. It has also an interesting ap... read more
Date: 04/08/2017 - 11:00 am

PIRSA:17060087  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tutorial: Coarse-graining of Spin Foams
Abstract:
Date: 22/06/2017 - 3:45 pm

PIRSA:17060085  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Coarse-graining of Spin Foams - 4
Abstract:
Date: 22/06/2017 - 12:00 pm

PIRSA:17060084  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Coarse-graining of Spin Foams - 3
Abstract:
Date: 22/06/2017 - 11:00 am

PIRSA:17060080  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tutorial: Coarse-graining of Spin Foams
Abstract:
Date: 21/06/2017 - 3:45 pm

PIRSA:17060078  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Coarse-graining of Spin Foams - 2
Abstract:
Date: 21/06/2017 - 12:00 pm

PIRSA:17060077  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Coarse-graining of Spin Foams - 1
Abstract:
Date: 21/06/2017 - 11:00 am

PIRSA:17060060  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Welcome and Opening Remarks
Speaker(s): Bianca Dittrich
Abstract:
Date: 19/06/2017 - 8:40 am

PIRSA:17040008  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Constructing Quantum Spacetime
Speaker(s): Bianca Dittrich
Abstract: General relativity taught us that space time is dynamical and quantum theory posits that dynamical objects are quantum. Hence the Newtonian notion of space time as a passive stage where physics takes place needs to be replaced by a notion of quantum space time which is interacting with all other qua... read more
Date: 26/04/2017 - 2:00 pm
Series: Colloquium

PIRSA:17040070  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Self-dual quantum geometries and four-dimensional TQFTs with defects
Speaker(s): Bianca Dittrich
Abstract: We apply the recently suggested strategy to lift state spaces and operators for (2+1)-dimensional topological quantum field theories to state spaces and operators for a (3+1)-dimensional TQFT with defects. We start from the (2+1)-dimensional Turaev-Viro theory and obtain a state space, consistent wi... read more
Date: 18/04/2017 - 10:00 am

PIRSA:16070067  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Entanglement Entropy in nonAbelian Gauge Theories
Speaker(s): Bianca Dittrich
Abstract:
Date: 19/07/2016 - 4:00 pm

PIRSA:15090080  ( MP4 Medium Res , MP3 , PDF ) Which Format?
What is a theory of quantum gravity?
Speaker(s): Bianca Dittrich
Abstract:
Date: 29/09/2015 - 11:00 am

PIRSA:15080082  ( MP4 Medium Res , MP3 , PDF ) Which Format?
3D Holography: from discretum to continuum
Speaker(s): Bianca Dittrich
Abstract: TBA
Date: 21/08/2015 - 2:00 pm

PIRSA:15040091  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Space Time Engineering
Speaker(s): Bianca Dittrich
Abstract: Modern physics rests on two basic frameworks, quantum theory and general relativity. Quantum gravity aims to unify these two frameworks into one consistent theory. One can expect that such a formulation delivers in particular a novel understanding of space and time as quantum objects. I will give... read more
Date: 08/04/2015 - 2:00 pm
Series: Colloquium

PIRSA:15030011  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-14
Speaker(s): Bianca Dittrich
Abstract:
Date: 06/03/2015 - 10:15 am

PIRSA:15030010  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-13
Speaker(s): Bianca Dittrich
Abstract:
Date: 05/03/2015 - 10:15 am

PIRSA:15030009  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-12
Speaker(s): Bianca Dittrich
Abstract:
Date: 04/03/2015 - 10:15 am

PIRSA:15030008  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-11
Speaker(s): Bianca Dittrich
Abstract:
Date: 03/03/2015 - 10:15 am

PIRSA:15030007  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-10
Speaker(s): Bianca Dittrich
Abstract:
Date: 02/03/2015 - 10:15 am

PIRSA:15020060  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-9
Speaker(s): Bianca Dittrich
Abstract:
Date: 27/02/2015 - 10:15 am

PIRSA:15020059  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-8
Speaker(s): Bianca Dittrich
Abstract:
Date: 26/02/2015 - 10:15 am

PIRSA:15020058  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-7
Speaker(s): Bianca Dittrich
Abstract:
Date: 25/02/2015 - 10:15 am

PIRSA:15020057  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-6
Speaker(s): Bianca Dittrich
Abstract:
Date: 24/02/2015 - 10:15 am

PIRSA:15020056  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-5
Speaker(s): Bianca Dittrich
Abstract:
Date: 23/02/2015 - 10:15 am

PIRSA:15020053  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-4
Speaker(s): Bianca Dittrich
Abstract:
Date: 20/02/2015 - 10:15 am

PIRSA:15020052  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-3
Speaker(s): Bianca Dittrich
Abstract:
Date: 19/02/2015 - 10:15 am

PIRSA:15020051  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-2
Speaker(s): Bianca Dittrich
Abstract:
Date: 18/02/2015 - 10:15 am

PIRSA:15020050  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Gravity Review-1
Speaker(s): Bianca Dittrich
Abstract:
Date: 17/02/2015 - 10:15 am

PIRSA:14050119  ( MP4 Medium Res , MP3 , PDF ) Which Format?
New Vacuum and Representation For Loop Quantum Gravity
Speaker(s): Bianca Dittrich
Abstract:
Date: 21/05/2014 - 1:20 pm

PIRSA:14040089  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Spacetime Engineering
Speaker(s): Bianca Dittrich
Abstract: Given (a set of) fundamental models of quantum space time, for instance spin foam models, we aim to understand the large scale physics encoded in these fundamental models. Renormalization and coarse graining address this issue and help to understand how large scale physics depends on parameters in t... read more
Date: 22/04/2014 - 3:20 pm

PIRSA:14030021  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 14
Speaker(s): Bianca Dittrich
Abstract:
Date: 07/03/2014 - 10:15 am

PIRSA:14030020  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 13
Speaker(s): Bianca Dittrich
Abstract:
Date: 06/03/2014 - 10:15 am

PIRSA:14030019  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 12
Speaker(s): Bianca Dittrich
Abstract:
Date: 05/03/2014 - 10:15 am

PIRSA:14030018  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 11
Speaker(s): Bianca Dittrich
Abstract:
Date: 04/03/2014 - 10:15 am

PIRSA:14030017  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 10
Speaker(s): Bianca Dittrich
Abstract:
Date: 03/03/2014 - 10:15 am

PIRSA:14020071  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 9
Speaker(s): Bianca Dittrich
Abstract:
Date: 28/02/2014 - 10:15 am

PIRSA:14020070  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 8
Speaker(s): Bianca Dittrich
Abstract:
Date: 27/02/2014 - 10:15 am

PIRSA:14020069  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 7
Speaker(s): Bianca Dittrich
Abstract:
Date: 26/02/2014 - 10:15 am

PIRSA:14020068  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 6
Speaker(s): Bianca Dittrich
Abstract:
Date: 25/02/2014 - 10:15 am

PIRSA:14020067  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 5
Speaker(s): Bianca Dittrich
Abstract:
Date: 24/02/2014 - 10:15 am

PIRSA:14020064  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 4
Speaker(s): Bianca Dittrich
Abstract:
Date: 21/02/2014 - 10:15 am

PIRSA:14020063  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 3
Speaker(s): Bianca Dittrich
Abstract:
Date: 20/02/2014 - 10:15 am

PIRSA:14020062  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 2
Speaker(s): Bianca Dittrich
Abstract:
Date: 19/02/2014 - 10:15 am

PIRSA:14020061  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Quantum Gravity Review - Lecture 1
Speaker(s): Bianca Dittrich
Abstract:
Date: 18/02/2014 - 10:15 am

PIRSA:14010112  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Constructing Quantum Space Time
Speaker(s): Bianca Dittrich
Abstract:
Date: 30/01/2014 - 2:45 pm
Collection: PI Day 2014

PIRSA:13120048  ( MP4 Medium Res , MP3 , PDF ) Which Format?
From spin foams to anyons and back again - Joint Condensed Matter/Quantum Gravity Seminar
Speaker(s): Bianca Dittrich
Abstract: Spin foams provide models for quantum gravity and hence quantum space time. One of the key outstanding questions is to show that they reproduce smooth space time manifolds in a continuum limit.I will start with a very short introduction to spin foams and the structure of quantum space time they enco... read more
Date: 05/12/2013 - 2:30 pm

PIRSA:13070085  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Discrete Approaches and Mixed Session
Abstract:
Date: 26/07/2013 - 2:30 pm
Collection: Loops 13

PIRSA:13070079  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Discrete Approaches - 3
Abstract:
Date: 25/07/2013 - 4:40 pm
Collection: Loops 13

PIRSA:13020058  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 14
Speaker(s): Bianca Dittrich
Abstract:
Date: 15/02/2013 - 10:15 am

PIRSA:13020057  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 13
Speaker(s): Bianca Dittrich
Abstract:
Date: 14/02/2013 - 10:15 am

PIRSA:13020056  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 12
Speaker(s): Bianca Dittrich
Abstract:
Date: 13/02/2013 - 10:15 am

PIRSA:13020055  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 11
Speaker(s): Bianca Dittrich
Abstract:
Date: 12/02/2013 - 10:15 am

PIRSA:13020054  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 10
Speaker(s): Bianca Dittrich
Abstract:
Date: 11/02/2013 - 10:15 am

PIRSA:13020050  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 9
Speaker(s): Bianca Dittrich
Abstract:
Date: 07/02/2013 - 10:15 am

PIRSA:13020049  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 8
Speaker(s): Bianca Dittrich
Abstract:
Date: 06/02/2013 - 10:15 am

PIRSA:13020048  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 7
Speaker(s): Bianca Dittrich
Abstract:
Date: 05/02/2013 - 10:15 am

PIRSA:13020047  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 6
Speaker(s): Bianca Dittrich
Abstract:
Date: 04/02/2013 - 10:15 am

PIRSA:13020044  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 5
Speaker(s): Bianca Dittrich
Abstract:
Date: 01/02/2013 - 10:15 am

PIRSA:13010092  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 4
Speaker(s): Bianca Dittrich
Abstract:
Date: 31/01/2013 - 10:15 am

PIRSA:13010091  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 3
Speaker(s): Bianca Dittrich
Abstract:
Date: 30/01/2013 - 10:15 am

PIRSA:13010090  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 2
Speaker(s): Bianca Dittrich
Abstract:
Date: 29/01/2013 - 10:15 am

PIRSA:13010089  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Quantum Gravity Review Lecture 1
Speaker(s): Bianca Dittrich
Abstract:
Date: 28/01/2013 - 10:15 am

PIRSA:12100100  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Is spacetime fundamentally discrete?
Abstract: Modelling continuum dynamics on discrete space timeWe will discuss perfect discretizations which aim at mirroring exactly continuum physics on a given lattice. Such discretizations avoid typical artifacts like Lorentz violation, energy dissipation, particle doubling and in particular breaking of di... read more
Date: 24/10/2012 - 9:00 am

PIRSA:12020142  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Coarse graining spin nets with tensor networks
Speaker(s): Bianca Dittrich
Abstract:
Date: 09/02/2012 - 10:20 am

PIRSA:10030115  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Geometro-kinematics and dynamics in a discrete setting
Speaker(s): Bianca Dittrich
Abstract: A quantum theory of gravity implies a quantum theory of geometries. To this end we will introduce different phases spaces and choices for the space of discretized geometries. These are derived through a canonical analysis of simplicity constraints - which are central for spin foam models - a... read more
Date: 25/03/2010 - 2:30 pm

PIRSA:10030027  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Diffeomorphism symmetry, triangulation independence and constraints in discrete gravity
Speaker(s): Bianca Dittrich
Abstract: Diffeomorphism symmetry is the underlying symmetry of general relativity and deeply intertwined with its dynamics. The notion of diffeomorphism symmetry is however obscured in discrete gravity, which underlies most of the current quantum gravity models. We will propose a notion of diffeomorp... read more
Date: 24/03/2010 - 4:00 pm

PIRSA:10030026  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Implications of background independence for quantum gravity
Speaker(s): Bianca Dittrich
Abstract: We will give a short overview of non-perturbative quantum gravity models and discuss some key common problems for these models. In particular we will analyze what background independence requires from a theory of quantum gravity.
Date: 23/03/2010 - 12:30 pm

PIRSA:07120030  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Introduction to Quantum Gravity
Speaker(s): Bianca Dittrich
Abstract:
Date: 06/12/2007 - 11:00 am

PIRSA:07050019  ( MP4 Medium Res , MP3 , PDF ) Which Format?
A Hamiltonian framework for cosmological perturbations to any order
Speaker(s): Bianca Dittrich
Abstract: We introduce a framework that allows to calculate cosmological perturbations in a gauge invariant manner to any order. The two main features of this framework are to take physical observables as basic objects and to treat the variables describing the background geometry as fully dynamical. Backreact... read more
Date: 01/05/2007 - 11:00 am

PIRSA:04100037  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Status of the Master Constraint Programme
Speaker(s): Bianca Dittrich
Abstract:
Date: 30/10/2004 - 2:35 pm
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