University of New Hampshire
Talks by David Mattingly
Universal problems
David Mattingly
University of New Hampshire
Arguments that gravity cannot be a local renormalizable quantum field theory come from both field theory lore and black hole physics. Two current approaches to quantum gravity, asymptotic safety and HoravaLifshitz gravity, both of which treat quantum gravity as a local renormalizable QFT, are explicitly constructed to counter field theory arguments about the nonrenormalizability of gravity. However, any proposed renormalizable theory of quantum gravity must also answer black hole physics based counterarguments.
Lorentz symmetry: Broken, intact or deformed?

Rafael Sorkin Perimeter Institute for Theoretical Physics

Sabine Hossenfelder Frankfurt Institute for Advanced Studies (FIAS)

David Mattingly University of New Hampshire

Niayesh Afshordi University of Waterloo

Daniel Sudarsky Universidad Nacional Autónoma De Mexico (UNAM)

Stefano Liberati SISSA Scuola Internazionale Superiore di Studi Avanzati

Joao Magueijo Imperial College London
Is aether technically natural?
I will discuss whether higher energy Lorentz violation should be considered a natural expectation in theories of quantum gravity with a preferred frame.
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If spacetime is a causal set then Lorentz symmetry is unbroken
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Quantum superpositions of the speed of light
I will discuss whether higher energy Lorentz violation should be considered a natural expectation in theories of quantum gravity with a preferred frame.
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If spacetime is a causal set then Lorentz symmetry is unbroken
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Quantum superpositions of the speed of light
Quantum Gravity Effects in Black Holes and Gravitational Waves

Giovanni AmelinoCamelia Sapienza Università di Roma  Dipartimento di Fisica

David Mattingly University of New Hampshire

Nicolas Yunes Montana State University

Avery Broderick Perimeter Institute for Theoretical Physics
Quantumgravity effects as noise for
gravitywave detectors
I discuss a mechanism that can allow Planck scale effects to manifest themselves as a source of loffrequency noise for interferometers. The mechanism requires a discrete formulation of dynamics at the Planck scale.
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Dancing in the Dark: Images of Quantum Black Holes
I discuss a mechanism that can allow Planck scale effects to manifest themselves as a source of loffrequency noise for interferometers. The mechanism requires a discrete formulation of dynamics at the Planck scale.
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Dancing in the Dark: Images of Quantum Black Holes