Webpage of Jan Novák

Cosmology is a science about the origin and evolution of the whole Universe. These are my slides from the seminar in Banská Bystrica in Slovakia, 17.1.2022.

One of the biggest unsolved problems of cosmology is to find a model for dark energy. People developed already many classical modifications of gravity, but it looks like that the correct explanation would be in the full quantum gravity. This is my presentation from a seminar in the department of mathematics at the Czech Technical University (Faculty of Nuclear Sciences and Physical Engineering).

We would like to invite You for a concert from the cycle Hraní pro hraní.

One of the most quickly developing mathematical disciplines is algebraic geometry.  People found a solution for such a hard problem as Fermat last theorem by this. It is also useful in physics. We present a part concerning plabic graph, which has connections with amplituhedron physics.

Quantum Gravity is so difficult subject, because we don’t have so far any experimental data from the Planck scale. We need to solve many different issues simultaneously as nonlocality, background independence, or dimensional reduction for solving this problem. We claim that it is possible to formulate a different approach from all known paradigms, which is based on ideas of causal set approach, loop quantum gravity and string theory. We present the basic idea.