Black Holes and «One Hundred Thousand Suns»

Category: Physics

  • Black Holes and «One Hundred Thousand Suns»

    Black Holes and «One Hundred Thousand Suns»

    Seminar and workshop

    Date: Nov. 27, 2025, Villino Stroganoff, Via Gregoriana 22, 00187 Rome and online

    Location: Bibliotheca Hertziana, Max Planck Institute for Art History, Rome

    Speakers: Dr. Eszter Polonyi, Dr. Sašo Grozdanov, and Rohini Devasher

    In this interdisciplinary seminar, an artist, a historian and a physicist come together to explore how visual methods produce knowledge about astronomical phenomena. How does the human observer approach the unseeable, the unknowable? In 2019, the iconic visualization of a black hole was released by the Event Horizon Telescope. This builds upon a long history of visual methods in observing celestial objects, from drawing to analog and digital photography. The seminar revolves around Dr. Eszter Polonyi and Dr. Sašo Grozdanov’s work on black holes and photography, and on Rohini Devasher’s artistic practice on portraying the Sun. We explore visual methodologies and interdisciplinary work processes – spanning art, physics, and history – through the lense of the astronomical image.

  • Black holes, the edge of knowledge, and what is knowable:

    Black holes, the edge of knowledge, and what is knowable:

    Past lessons and future challenges

    Date: 17 November 2025, 2:15 p. m.

    Location: J19/F1, Faculty of Mathematics and Physics, Jadranska ulica 19, Ljubljana

    Speaker: Assoc. Prof. Dr. Sašo Grozdanov

    Black holes are probably the most fascinating objects in nature. Their study places us at the frontier between known and unknown physical laws—at the intersection of classical General Relativity, quantum physics, and the still-developing theory of quantum gravity. In the first part of this talk, I will discuss what black holes are, what we currently understand about them, what remains mysterious, and how they fit into the string-theoretic holographic (AdS/CFT) duality, which connects certain theories of quantum gravity to quantum field theories. I will then present some of my past research results that stem from studying black holes and their relation to quantum physics through holography. These include statements about hydrodynamics, many-body localisation, heavy-ion physics, and quantum chaos, all in strongly interacting quantum field theories. Finally, I will outline several foundational open problems in theoretical physics and reflect on the connections between physics, philosophy, and art.

    Black holes, the edge of knowledge, and what is knowable:

    Past lessons and future challenges

    Assoc. Prof. Dr. Sašo Grozdano