Some Applications of Hyperbolic Geometry in String Perturbation Theory
Ph.D. Thesis Presentation
Candidate: Seyed Faroogh Moosavian
Candidate: Seyed Faroogh Moosavian
Candidate: Sebastian Mizera
Explore the night sky with astronomers from the Faculty of Science and Royal Astronomical Society of Canada. The Perseids meteor shower will be at its most spectacular, so let's gather to learn something and then enjoy the view!
Candidate: Jeremy Flannery
Have you ever looked at a flame dancing in the air and asked yourself what a flame really is? For instance, what happens when we burn firewood (matter) and thus change it to light and heat (energy). Simply speaking, when you ask such questions you are wondering about two physical quantities, light and matter. Clearly many over the history of time have thought about the interaction between light and matter, and some have thought more in depth in order to understand the basic phenomenon related to this interaction.
Norbert Werner is the leader of the “Lendület Hot Universe” research group at Eötvös Loránd University in Budapest, Hungary, an associate professor (Docent) in the Department of Theoretical Physics and Astrophysics at the Masaryk University in Brno, Czech Republic, and a specially appointed associate professor in the School of Science at Hiroshima University, Japan.
The values of neutrinos’ masses and the force driving the accelerated expansion of the Universe are some of the unknown in physics.
On September 18th, we will be visiting the Perimeter Institute, the epicentre for theoretical physics, with focus ranging from quantum foundation, to quantum gravity, to quantum fields and strings, particle physics, to condensed matter and quantum information science, and to cosmology.
I will discuss the optically thick models of accretion, including analytic models such as Shakura-Sunyaev's thin disk solution, slim disks and geometrically thick disks. I will talk about their properties, such as stability, angular momentum transport, and the importance of radiation.
The Event Horizon Telescope (EHT) has produced the first image of the 1.3 mm-wavelength emission around the black hole “shadow” at the heart of M87. Because the EHT's dynamic range is currently limited, this image does not show emission from the famous relativistic jet which is prominent in VLBI images at longer wavelengths. I will discuss how large-scale numerical simulations connect VLBI images of the shadow at 1.3 mm to images of the jet at longer wavelengths and constrain the physics of the jet launching region.