Uploaded October 2024 | Updated September 2026, 2 weeks ago
Speaker: Emily Adlam
Abstract: Entropy bounds have played an important role in the development of holography as an approach to quantum gravity. In this talk I will discuss several interpretations of the covariant entropy bound. I observe that there is a possible way of thinking about the covariant entropy bound which would suggest that it encodes an epistemic limitation rather than an objective count of the true number of degrees of freedom on a light-sheet; thus I distinguish between ontological and epistemic interpretations of the covariant bound. I will consider the consequences that these interpretations might have for physics and we discuss what each approach has to say about gravitational phenomena. Finally, I will consider what existing knowledge about entanglement entropies can tell us about this question.
Speaker: Emily Adlam
Abstract: Entropy bounds have played an important role in the development of holography as an approach to quantum gravity. In this talk I will discuss several interpretations of the covariant entropy bound. I observe that there is a possible way of thinking about the covariant entropy bound which would suggest that it encodes an epistemic limitation rather than an objective count of the true number of degrees of freedom on a light-sheet; thus I distinguish between ontological and epistemic interpretations of the covariant bound. I will consider the consequences that these interpretations might have for physics and we discuss what each approach has to say about gravitational phenomena. Finally, I will consider what existing knowledge about entanglement entropies can tell us about this question.
