Philosophy of Physics Seminar (Thursday - Week 8, HT19)

Philosophy of Physics

The emergence of spacetime from quantum gravity appears to be a striking case-study of emergent phenomena in physics (albeit one that is speculative at present). There are, in fact, two different cases of emergent spacetime in quantum gravity: a ``synchronic'' conception, applying between different levels of description, and a ``diachronic'' conception, from the universe ``before'' and after the ``Big Bang'' in quantum cosmology. The purpose of this paper is to explore these two different senses of spacetime emergence; and to see whether, and how, they can be understood in the context of specific extant accounts of emergence in physics.

There will be a dinner at Zheng in Jericho following the seminar, open to all (at your own expense). Please email by Wednesday morning before the seminar if you would like to attend.

Philosophy of Physics Seminar Convenors for HT19: James Read and Simon Saunders