Ultralight Dark Matter and observable phenomena
IFPU
29 September-October 3 2025
Ultralight dark matter (ULDM) models have recently gained interest due to its small scales predictions. Their small masses may let them behave as a collection of waves, leading to new phenomena such as a suppression in the mass power spectrum on small scales, the presence of characteristic interference patterns, the formation of soliton cores, observational effects in pulsar timing data. Standard candidates are axion like particles and dilatons, but there are also viable candidates of vector and spin 2 tensors. In principle, the predictions of each candidate model must be confronted with data on all scales where the models make calculable predictions that can be tested observationally or experimentally. This Focus Week is intended to bring together experts on ULDM dedicated to the study of different observable phenomena, with the aim of contributing to identifying and characterizing observable effects relevant to the discrimination between candidate models.
Meeting webpage: https://indico.sissa.it/event/165/
Organisers:
- Diana López Nacir (UBA/CONICET, Buenos Aires)
- Federico Urban (CEICO-FZU, Prague)
- Enrico Barausse (SISSA)
Participants:
- Anastasia Fialkov (IoA, Cambridge University)
- Auréllien Hees (Observatoire de Paris)
- Christopher McCabe (King’s College London)
- Clare Burrage (University of Nottingham)
- Diana López Nacir (DF-UBA/IFIBA)
- Diego Blas (ICREA / IFAE)
- Enrico Barausse (SISSA)
- Erick Munive Villa (CEICO-FZU)
- Federico Urban (CEICO-FZU)
- Jens Niemeyer (Georg-August-University Goettingen)
- Jessica Nayely Lopez Sanchez (CEICO-FZU)
- Jose Alberto Ruiz Cembranos (IPARCOS-UCM)
- Lorenzo Aiello (Tor Vergata University of Rome, INFN Rome Tor Vergata)
- Massimo Vaglio (SISSA)
- Mustafa Amin (Rice University)
- Ornella Piccinni (Australian National University)
- Paola Carolina Moreira Delgado (CEICO-FZU)
- Rohit Chandramouli (SISSA)
- Tomás Ferreira Chase (DF-UBA/IFIBA)
- Valentina Danielli (CEICO-FZU)
- Wien Yin (Tokyo Metropolitan University)