Armen Sedrakian

Searching for the neutron star equation of state

Relativistic density functionals based on baryon-meson Lagrangians can be used to describe effectively dense matter in compact stars including hyperonic and Delta-resonance degrees of freedom. These can be supplemented with a first-order phase transition to quark matter at high densities to describe hybrid compact stars. I will discuss how the mass-radius and tidal deformability inferences from electromagnetic and gravitational wave observations constrain the current models of hypernuclear and hybrid stars. I will briefly review recent results on the bulk viscosity of dense nucleonic matter in hot compact stars, which emerged in recent years as the leading dissipative channel in binary-neutron star merger simulations.

Alexander Ayriyan

Bayesian analysis of the equation of state of dense nuclear matter

Jaroslaw Pawlowski (WUST)

Machine learning-aided quantum tomography

Aliasghar Parvizi

Polymer Quantization Schemes for Gravitational Waves: From theory to observation

Motivated by loop quantum gravity, we propose two polymer quantization schemes to describe the propagation of gravitational waves within a classical Friedmann-Lemaitre-Robertson-Walker (FLRW) spacetime. These novel schemes yield modified waveforms, altering the amplitude of the waves as they traverse quantum spacetime. Additionally, the speed of the waves becomes frequency-dependent due to polymer corrections. We investigate the detectability of these signals using instruments like LISA and LIGO, establishing bounds on the polymer scales.