| Saturday 15 March 2025 | |
| Events for day: Tuesday 04 March 2025 |
| 11:00 - 12:30 Weekly Seminar Dark matter from inflationary quantum fluctuations School ASTRONOMY Abstract: We explore a scenario in which dark matter is a massive bosonic field, arising solely from quantum fluctuations generated during inflation. In this framework, dark matter exhibits primordial isocurvature perturbations with an amplitude of O(1) at small scales that are beyond the reach of current observations, such as those from the CMB and large-scale structure. Assuming a monochromatic initial power spectrum, we identify the viable parameter space defined by dark matter mass and the length scale of perturbations. A key prediction of this scenario is copious formation of subsolar dark matter halos at ... |