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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Silke Weinfurtner


Quantum Gravity Laboratory
Speaker(s): Silke Weinfurtner
Abstract: At the level of effective field theory it is possible to establish analogies between non-gravitational and gravitational systems. For example, first order perturbation equations in an analogue gravity model can be written as a wave equation in a curved spacetime. Perhaps the most intriguing applicat... read more
Date: 27/10/2011 - 11:00 am

Black hole experiments: Testing effective field theories in curved spacetimes
Speaker(s): Silke Weinfurtner
Abstract: In 1981 Bill Unruh showed that the equation of motion for sound waves in a convergent fluid flows is given by a wave equation in an acoustic metric geometry. More importantly it is possible to set up sonic horizons in transsonic flows, and thus in principle to mimic experimentally the black-hole... read more
Date: 11/11/2009 - 2:00 pm
Series: Colloquium

Quantum gravity without Lorentz invariance
Speaker(s): Silke Weinfurtner
Abstract:
Date: 08/11/2009 - 4:30 pm

Emergent spacetimes
Speaker(s): Silke Weinfurtner
Abstract: We discuss the possibility that spacetime geometry may be an emergent phenomenon. This idea has been motivated by the Analogue Gravity programme. An 'effective gravitational field' dominates the kinematics of small perturbations in an Analogue Model. In these models there is no obvious connection be... read more
Date: 06/11/2008 - 2:00 pm

Mass-generating mechanism for Nambu-Goldstone bosons in emergent spacetime and its application for quantum gravity phenomenology
Speaker(s): Silke Weinfurtner
Abstract: Effective field theories (EFTs) have been widely used as a framework in order to place constraints on the Planck suppressed Lorentz violations predicted by various models of quantum gravity. There are however technical problems in the EFT framework when it comes to ensuring that small Lorentz violat... read more
Date: 05/11/2007 - 6:00 pm
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