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Toward a Quantum-Safe Future
There has been tremendous progress in the many layers needed to realize large-scale quantum computing, from the hardware layers to the high level software. There has also been vastly increased...
Apr 08, 2020
Baby Universes and Black Hole Information
In the 1980’s, work by Coleman and by Giddings and Strominger linked the physics of spacetime wormholes to ‘baby universes’ and an ensemble of theories. We revisit such ideas, using...
Apr 09, 2020
Exploring the nonlinear dynamics of Einstein dilaton Gauss-Bonnet gravity
We discuss several numerical and analytical studies of the modified gravity theory Einstein dilaton Gauss-Bonnet (EdGB) gravity. This class of modified gravity theories admit scalarized black hole solutions. The theory...
Apr 09, 2020
Coulomb branches for quaternionic representations
I will review the construction of Coulomb branches in 3D gauge theory for a compact Lie group G and a quaternionic representation E. In the case when E is polarized...
Apr 09, 2020
Quantum group in 3d quantum gravity
It is well-known that quantum groups are relevant to describe the quantum regime of 3d gravity. They encode a deformation of the gauge symmetries (Lorentz symmetries) parametrized by the value...
Apr 09, 2020
Petz map and Python’s lunch
We look at the interior operator reconstruction from the point of view of Petz map and study its complexity. We show that Petz maps can be written as precursors under...
Apr 14, 2020
Dark Matter: A Cosmological Perspective
While it is considered to be one of the most promising hints of new physics beyond the Standard Model, dark matter is as-yet known only through its gravitational influence on...
Apr 15, 2020
Covariant Loop Quantum Gravity, the State of the Art
The covariant (spinfoam) formulation of loop gravity is a tentative physical quantum theory of gravity with well defined transition amplitudes. I give my current understanding of the state of the...
Apr 16, 2020
A quantum circuit interpretation of evaporating black hole geometry
When Alice shares thermofield double with Bob, her time evolution can make the wormhole grow. We identify different kinds of operations Alice can do as being responsible for the growth...
Apr 21, 2020