Dear all The talk today at 14:00 (see below) may be of interest to those who are wondering what happens inside a black hole. Zhenbin is an expert on black holes and the paradoxes around them, so I can warmly recommend this talk. Best wishes Renato

Begin forwarded message:

From: Beatrix Huber <beatrix.huber@itp.phys.ethz.ch> Subject: Seminar Announcement: QFT and String Theory seminar / Quantum Information Theory seminar Date: 26 May 2026 at 16:39:47 CEST To: itp-all@lists.phys.ethz.ch

Seminar Announcement QFT and String Theory seminar / Quantum Information Theory seminar

Speaker: Zhenbin Yang (Tsinghua University)

Location: HIT F 13

Date: Thursday, May 28, 2026

Time: 14.00 h

Title: Chaotic properties of de Sitter horizon

Abstract:

The introduction of an observer in de Sitter space introduces the notion of an energy and closed system. I will discuss some properties of this closed system from a conjectured holographic perspective, and some related puzzles.

sig. M. Gaberdiel