ABSTRACT

Loop quantum gravity indicates that black holes can leave long-living remnants. The interior of the black hole can quantum tunnel into the interior of a white hole, and the information trapped into the horizon can leak out. Remnants are quasi-stable objects with the mass of a fraction of a microgram (the Plank mass); they can be detected with quantum detection technology and represent a natural dark matter candidate. In the lecture, I give a simple illustration of this scenario leading the audience in a voyage towards and inside the black hole, through the quantum gravity region, and out of the white hole.

About the Speaker:

Carlo Rovelli is a theoretical physicist, known for his work on quantum gravity and the nature of time. Among his recognitions are the 1996 Xanthopoulos Award and the 2024 Lewis Thomas Prize. He is affiliated to the University of Aix-Marseille, the philosophy department and the Rotman Institute of the Western Ontario University, the Perimeter Institute and the Santa Fe Institute for Complexity. He is member of the Institute Universitaire de France, honorary professor of the Beijing Normal University, Honoris Causa Laureate of the Universidad de San Martin, Buenos Aires, member of the Academie Internationale de Philosophie des Sciences. He promoted the Peace Dividend Initiative, involving 60 Nobel Laureates in asking for a worldwide collaborative military expenses reduction. He has written global best sellers translated in more than 40 languages. He has been included in the 2019 list of the 100 most influential "Global Thinkers" by Foreign Policy magazine and in the 2021 list of The World's 50 Top Thinkers by Prospect magazine.