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Light Hidden Sectors and the Hubble Tension
The inference of the present expansion rate from the Cosmic Microwave Background and other early-time probes (assuming standard cosmology) is in significant tension with several direct measurements of the same...
Jun 09, 2020
Engineering and measuring higher-order topology
Recently, a lot of attention has been dedicated to a novel class of topological systems, called higher-order topological insulators (TIs). The reason is that, while a conventional d-dimensional TI exhibits...
Jun 09, 2020
COVID-19: Detecting the Dark Matter of the Disease
COVID-19 is a mysterious disease associated with a large number of unanswered questions. In this talk we review what is currently known, what is still a mystery and highlight some...
Jun 16, 2020
TBA
TBA
Jun 16, 2020
Emergent criticality in non-unitary random dynamics
In this talk, I will discuss emergent criticality in non-unitary random quantum dynamics. More specifically, I will focus on a class of free fermion random circuit models in one spatial...
Jun 16, 2020
AdS3 gravity and random CFT
We compute the path integral of three-dimensional gravity with negative cosmological constant on spaces which are topologically a torus times an interval. These are Euclidean wormholes, which smoothly interpolate between...
Jun 16, 2020
Tensors, invariants, and optimization
Given a vector in a representation, can it be distinguished from zero by an invariant polynomial? This classical question in invariant theory relates to a diverse set of problems in...
Jun 17, 2020
Phase Shift of Gravitational Waves induced by Aberration
The velocity of a gravitational wave (GW) source provides crucial information about its formation and evolution processes. Previous studies considered the Doppler effect on the phase of GWs as a...
Jun 18, 2020
Phase Detection with Neural Networks: Interpreting the Black Box
Neural networks (NNs) normally do not allow any insight into the reasoning behind their predictions. We demonstrate how influence functions can unravel the black box of NN when trained to...
Jun 23, 2020