2022
Quick information
Type Seminar
Date March 18, 2022 - 11:00
Time 11:00
Location Room 105 (hybrid), GANIL, Caen | France
Share this event
More events
Workshops
December 12 > 16, 2022
Physics with SPIRAL2 Heavy Ion Beams
GANIL, Caen | France
Conference
October 17 > 21, 2022
GANIL Community Meeting
GANIL, Caen | France
Conference
October 10 > 10, 2022 - 6.00 pm
EPOPEA fête la science & l’innovation
ESTIC Caen

Friction in superfluids: the curious case of neutron stars

Marco Antonelli (LPC Caen, France)

The defining property of superfluids is their ability to flow without friction. However, the presence of quantized vortices can open new dissipative channels that lead to hydrodynamic friction. Understanding this mechanism is a fundamental ingredient to model neutron star phenomenology, like pulsar glitches, oscillation modes damping, and cooling in old pulsars. Recent simulations of vortex motion in a disordered environment allowed to test some qualitative features that are expected for this kind of friction: the main results and their relevance for the astrophysical phenomenon of pulsar glitches will be discussed.