Jul 20 – 24, 2026
St. John's Hotel, Gangneung
Asia/Seoul timezone

Primordial Black Holes in Einstein–Dilaton–Gauss–Bonnet Gravity

Jul 22, 2026, 4:30 PM
30m
Babuda Ballroom, 4F, Ocean tower (St. John's Hotel, Gangneung)

Babuda Ballroom, 4F, Ocean tower

St. John's Hotel, Gangneung

307, Changhae-ro, Gangneung-si, Gangwon-do, Republic of Korea

Speaker

Dr Madhu Mishra (CQUeST, Sogang University)

Description

Primordial black holes (PBHs) provide a unique window into the physics of the early Universe and offer an important avenue for probing gravity beyond General Relativity. In this talk, I will discuss the formation and properties of primordial black holes in the framework of Einstein–Dilaton–Gauss–Bonnet (EdGB) gravity, where a scalar dilaton field is non-minimally coupled to the Gauss–Bonnet curvature invariant. I will present the theoretical motivation for considering this class of modified gravity theories and examine how the Gauss–Bonnet coupling influences the dynamics of gravitational collapse, black hole solutions, and the conditions for primordial black hole formation. I will also discuss the implications of these modifications for the PBH mass spectrum, observational signatures, and constraints from current and future astrophysical and cosmological observations.

Presentation materials