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Pushing the frontiers of gravitational encounters and collisionless dynamics
The long range nature of gravity complicates the dynamics of self-gravitating many-body systems such as galaxies and dark matter (DM) halos. Relaxation/equilibration of perturbed galaxies and cold dark matter halos...
Nov 22, 2022
An operator-algebraic formulation of self-testing
We give a new definition of self-testing for correlations in terms of states on C*-algebras. We show that this definition is equivalent to the standard definition for any class of...
Nov 16, 2022
Cosmology and astrophysics with the extragalactic light: background and fluctuations
Cosmology and astrophysics with the extragalactic light: background and fluctuations Abstract: The aggregate light emitted by all extragalactic sources can be measured either as an absolute intensity or through its...
Oct 18, 2022
The Complexity and (Un)Computability of Quantum Phase Transitions
The phase diagram of a material is of central importance in describing the properties and behaviour of a condensed matter system. Indeed, the study of quantum phase transitions has formed...
Oct 26, 2022
Holographic scattering from quantum error-correction
We revisit the problem of how interactions emerge in quantum gravity. Namely, we show that bulk scattering of multiple particles in the AdS space requires multipartite entanglement on the boundary...
Oct 26, 2022
Dark Matter in the Era of Gaia
Dark Matter in the Era of Gaia
Oct 22, 2019
Gabriela González, Louisiana State University
Albert Einstein predicted a century ago the existence of gravitational waves – ripples in the fabric of spacetime moving at the speed of light. It was believed that these ripples...
Oct 23, 2019
Cosmology with Massive Neutrinos
Ghostly neutrino particles continue to bring surprises to fundamental physics, from their existence to the phenomenon of neutrino oscillation which implies that their masses are nonzero. Their exact masses, among...
Oct 29, 2019
New probes of fundamental physics: Utilising small-scale signatures in the Universe.
The influx of new and high-quality cosmological data from upcoming cosmic microwave background (CMB) and large-scale structure surveys will provide unique and exciting opportunities to study the fundamental constituents of...
Nov 05, 2019
Fusion rules from entanglement
Connections between 2D gapped quantum phases and the anyon fusion theory have been proven in various ways under different settings. In this work, we introduce a new framework connecting them...
Nov 06, 2019