SCALES 1st General Meeting - Superfluid Condensates in Astrophysics and Laboratory Experiments

Session

Astro - generic

25 Jun 2026, 09:00

Physics Department, University of Coimbra

Conveners

Astro - generic: 1st morning session

• Clara Dehman (University of Alicante)

46. Bulk viscosity and damping of density oscillations in binary neutron star mergers

Dr Arus Harutyunyan (Byurakan Astrophysical Observatory, Yerevan State University)

25/06/2026, 09:00

Talk

Bulk viscosity in neutron stars plays an important role in the dynamics of binary neutron star mergers by damping density oscillations in the post-merger remnant. In this talk, I will review the computation of bulk viscosity in the warm, dense, neutrino-transparent cores of neutron stars for two possible compositions: nuclear matter and quark matter. For the nuclear matter equation of state...

37. Beyond the Taylor Expansion: Systematics in the phase of continuous gravitational wave

Anirudh Nemmani (Nicolaus Copernicus Astronomical Center, CAMK PAN)

25/06/2026, 09:50

Talk

Studying isolated asymmetric neutron stars via continuous gravitational waves has become a new approach to understanding neutron star physics, given improvements in detector sensitivity and the upcoming next-generation detectors like the Einstein Telescope, which will make detection of these signals feasible in the near future. In our work, we investigate whether corrections to the...

59. Beyond the thousands: Lessons from simulating a neutron star with 10^5 quantized vortices

Anantharaman Viswanathan (Ashoka University)

25/06/2026, 10:15

Talk

A neutron star is expected to contain a rotating neutron superfluid, threaded by 10^17 quantized vortices, in an environment with a much larger number of pinning sites. The interaction between these two entities, along with the spin-down of the star's crust, is thought to be the primary driver of pulsar glitches. Given reasonable computational resources, existing Gross-Pitaevskii simulations...