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The trinity of relational quantum dynamics
In order to solve the problem of time in quantum gravity, various approaches to a relational quantum dynamics have been proposed. In this talk, I will exploit quantum reduction maps...
Mar 12, 2020
Gapped condensation in higher categories
Idempotent (aka Karoubi) completion is used throughout mathematics: for instance, it is a common step when building a Fukaya category. I will explain the n-category generalization of idempotent completion. We...
Mar 17, 2020
Tensor 2-categories of Hall modules
Tensor 2-categories are expected to play a fundamental role in 4D quantum topology. The study of tensor 2-categories is still in its early stages, especially when compared to the vast...
Mar 17, 2020
Single-Shot-Decoding with High Thresholds in LDPC Quantum Codes with Constant Encoding Rate
It is believed that active quantum error correction will be an essential ingredient to build a scalable quantum computer. The currently favored scheme is the surface code due to its...
Mar 18, 2020
Holomorphic Floer theory and deformation quantization
Geometry of a pair of complex Lagrangian submanifolds of a complex symplectic manifold appears in many areas of mathematics and physics, including exponential integrals in finite and infinite dimensions, wall-crossing...
Mar 19, 2020
Probing Supermassive Black Holes with Gravitational Waves
Observations have shown that nearly all galaxies harbor massive or supermassive black holes at their centers. Gravitational wave (GW) observations of these black holes will shed light on their growth...
Mar 19, 2020
Quantum Geometry vs. Quantum Gravity
Quantizing 4D geometries leads to discrete area spectra. Such discrete area spectra are also suggested by the holographic principle and entropy counting for black holes. Starting with this input of...
Mar 19, 2020
Physics beyond the Standard Model at the Cosmological Collider
Historically, new particles and forces in the Standard Model have most often revealed themselves at high-energy particle colliders. Certain phenomena beyond the Standard Model, however, are best studied by using...
Mar 25, 2020
Modeling the Common Envelope Inspiral Phase and Formation of LIGO’s Binary Black Holes
With the impressive number of binary black hole mergers observed by the LIGO-Virgo detector network in the recent years, it is now important to understand the formation channels of these...
Mar 26, 2020
The quasi-local degrees of freedom of Yang-Mills theory
Gauge theories possess nonlocal features that, in the presence of boundaries, inevitably lead to subtleties. In particular their fundamental degrees of freedom are not point-like. This leads to a non-trivial...
Mar 26, 2020