Superfluidity is a striking phenomenon observed in many quantum fluids, which can flow without viscosity when cooled to low temperatures. Recent experimental advances allow us to study and visualise the complex flows of these systems in the presence of vorticity, and track the dynamics of quantum vortices far from equilibrium, both for bosonic and fermionic superfluids. Experiments with helium-4 and helium-3 allow the analysis of quantum turbulence on different scales, while cold atomic gases allow exquisite studies of single vortex dynamics in a variety of regimes, spanning the entire crossover from molecular Bose-Einstein condensates (BEC) to Bardeen-Cooper-Schrieffer (BCS) superfluids. Moreover, a growing body of theoretical and observational evidence suggests that nucleons in neutron stars are paired and form a fermionic superfluid, the dynamics of which is thought to be at the origin of the observed radio pulsar glitches.
The next years will bring a wealth of data on neutron star dynamics, from new radio observatories such as the Square Kilometer Array (SKA), but especially from gravitational wave observations with next-generation detectors, like the planned European Einstein Telescope (ET). Direct laboratory analogues of superfluid neutron stars are now being studied with superfluids on rotating platforms, but this connection is neither systematically explored nor disseminated among the relevant scientific communities.
The COST Action SCALES will bring together novel laboratory experiments, emerging massive parallel simulations, and neutron star experts to kickstart this new avenue of superfluidity research and pave the way for new discoveries across different scales.
The first Action wide meeting will include plenary sessions describing the physical problems at the basis of each working group (WG), and the objectives of the different WGs will be present (specifically open problems in Cold Atoms, Helium and Neutron Star superfluidity), as well as submitted abstracts. Submission by young researchers is encouraged, as well as multi-disciplinary talks that create convergence between WGs. The choice of participants to be reimbursed by the Action will be made against a set of MC approved criteria, that include COST policy criteria, and additional items (regarding relevance to action objectives).
KEY SPEAKERS:
SCIENTIFIC ORGANIZING COMMITTEE:
LOCAL ORGANIZING COMMITTEE:
-Helena Pais (UC)
-Hugo Terças (ISEL)
-Constança Providência (UC)
-Tuhin Malik (UC)
-Tiago Custódio (UC)
-Milena Albino (UC)
-Rafael Cardoso (UC)
-Isabel Melo (Secretariat - ADDF)
IMPORTANT INFORMATION /DATES:
-March 11: Registration opens
-March 11: Abstract submission opens
-April 30: Abstract submission closes
-May 15: Notification of abstract acceptance
-May 15: Notification of financial support
-May 30: Program released
-June 1: Registration closes*
-June 7: Deadline for payments
*There is a limit of 135 participants. After this number is reached, the registrations will be placed on a waiting list.
