Daniel Sudarsky (UNAM)
4:30-6:30pm Tuesday Sept 25; 3rd floor seminar room, NYU philosophy department (5 Washington Place).
Title: A philosophical mantle on the primordial tensor modes in inflation.
Abstract: Inflationary cosmology’s account for the emergence of the seeds of structure in the universe out of primordial quantum fluctuations is empirically successful as far as the so called scalar modes is concerned, but not so regarding the tensor modes. On the other hand, the usual account has some serious conceptual problems, connected to the quantum macro-objectification question. In the search for an approach to resolve the latter, we find substantially modified predictions (with respect to the standard ones) for one of the observables, specifically the estimates for the amplitude and shape of the spectrum primordial gravity waves. This is an interesting example, where considerations that might have initially thought to be “just of philosophical interest” actually led to novel and (so far better) predictions for empirical facts.
There will be dinner after the talk. If you are interested, please send an email with “Dinner” in the heading to firstname.lastname@example.org (please note that all are welcome, but only the speaker’s dinner will be covered). If you have any other questions, please email email@example.com.