Philosophy of Physics Seminar (Thursday - Week 5, MT18)

Philosophy of Physics

Recent work in the physics literature demonstrates that, in particular classes of rotating spacetimes, physical light rays do not, in general, traverse null geodesics. In this talk, I discuss its philosophical significance, both for the clock hypothesis (in particular, for Sam Fletcher’s recent purported proof thereof for light clocks), and for the operational meaning of the metric field in GR. (This talk is based on joint work with James Read and Niels Linnemann)

Philosophy of Physics Seminar Convenor: Dr Adam Caulton