Vojtěch Witzany,

personal webpage

Hello, my name is Vojtěch Witzany and I am a physicist working on the theory and phenomenology of black holes. Currently (from Jan 2023), I am a Primus group leader at the Institute of Theoretical Physics at Charles University in Prague.  Please enjoy the assortment of links and trivia related to my person below.

I will be hiring a PhD student to start in September 2023 in Prague: https://www.mff.cuni.cz/en/physicsphd/f1/phd-projects-funding/new-horizons-in-back-reaction


Roughly speaking, much of my research could be summarized as attempting to answer the question "How do things move near black holes?". However what these "things" are can vary quite a bit, though. They can be speckles of dust, other black holes, neutron stars, "ordinary" stars, or even clouds of magnetized plasma orbiting the black holes in accretion disks.  The fields of the black holes in which the dynamics are happening can be isolated, rotating, non-rotating, but they can also be perturbed by the presence of matter. To answer how all these things move in the black hole fields, I use advanced mathematical techniques and numerical simulations. 

Study/career track

Outreach writing

I like talking about science from a generalist point of view. I think it brings something to the people who listen but also forces me to take on fresh perspectives. 

For a period of time I contributed regularly to Physics Stackexchange (see my profile), I also semi-regularly write popular science articles for the Czech magazine Respekt on various topics:

My other miscellaneous outreach writing includes:

Scientific publications

You will find my most recent publications by searching me on ArXiv or checking my Google Scholar profile.
Here is a list updated in December 2021 (only my 11 published peer-reviewed works are listed in reverse chronological order, conference proceedings and preprints are left out):