One way of modifying gravity is by adding additional fields to the action. In this talk, I will demonstrate how to compute the effect of such additional fields on a binary's gravitational potential. As will be discussed, the gravitational waveform generated by a compact binary is highly dependent on the potential, and thus such extensions of gravity may be detectable by gravitational...
Rapid advancement in neutron-star observations allows unprecedented empirical access to cold, ultra-dense QCD matter, complementing collider experiments. The combination of these observations with theoretical calculations reveals previously inaccessible features of the equation of state and the phase diagram of QCD. In this talk, I demonstrate how perturbative-QCD calculations at...
I will introduce GAMBIT-light, a lightweight and user-friendly version of the GAMBIT framework, intended as a discipline-agnostic tool for computationally expensive parameter estimation and model comparison problems.
In this talk we will describe the PLUMBIN' project which has recently been funded by the Research Council of Norway. PLUMBIN' is a cross-disciplinary project with collaboration between high-energy theoretical physics and statistics, focused on developing modern tools for new physics searches. We will put some emphasis on describing the sort of problems that PLUMBIN' sets out to solve, rather...
Data from a wide range of jet observables measured in heavy ion collisions provide a comprehensive picture of jet modification by the resulting quark-gluon plasma. In this way, the medium-modified jets act as a perturbative probe that allows us to infer the properties of the medium. However, their interpretation is often limited by the assumptions of specific quenching models, and it remains a...
We have all heard how classical physics predicts an infinite amount of ultraviolet radiation from a black-body and how Planck solved this by quantizing the electromagnetic radiation.
This, however, is a myth, nobody at the time was worried about any ultraviolet catastrophe, the term was not even coined until 11 years after Planck. So what did Planck do and why? That will be the topic of this...
Anisotropies in the context of heavy ion collisions are well known. The system of gluon fields generated during the heavy-ion collisions are unstable and the nature of these instabilities are not well known. To understand them better, we study the behaviour of different modes with various combinations of Abelian and non-Abelian electric and magnetic fields with small fluctuations around the...
In this talk I present recent work on numerically determining the classical trajectories of initial value problems from a variational principle that implements manifest time translational symmetry.
Lately the theoretical physics community has seen a keen interest in the notion of higher symmetries, both from a global and local perspective. Understanding this mathematically can be key for doing good physics. Just like general relativity requires differential geometry, and ordinary gauge theory is described using the language of vector bundles, higher symmetries are modelled mathematically...
