PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE
 | Coarse graining spin nets with tensor networks Speaker(s): Bianca Dittrich
Abstract:
Date: 09/02/2012 - 10:20 am
Collection: Workshop: Computational Methods at Perimeter
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 | PIRSA:10030115
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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
Series: Quantum Gravity
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 | PIRSA:10030027
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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
Series: Quantum Gravity
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 | PIRSA:10030026
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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
Series: Quantum Gravity
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 | PIRSA:07120030
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Introduction to Quantum Gravity Speaker(s): Bianca Dittrich
Abstract:
Date: 06/12/2007 - 11:00 am
Collection: Workshop: Computational Methods at Perimeter
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 | PIRSA:07050019
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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
Series: Cosmology & Gravitation
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 | PIRSA:04100037
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Status of the Master Constraint Programme Speaker(s): Bianca Dittrich
Abstract:
Date: 30/10/2004 - 2:35 pm
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