Equation of state of dense matter and application to neutron stars

by Domenico Logoteta (Istituto Nazionale di Fisica Nucleare)

Monday 2 Feb 2026, 13:30 → 15:30 Europe/Rome

U2-02 (Bicocca)

Abstract:  I will review the derivation of a microscopic equation of state of nucleonic and hadronic matter based on modern nuclear interactions, in a range of density and temperature of interest for various astrophysical systems like neutron stars, supernova explosions and binary neutron star mergers. I will discuss some open problems about these issues like the formation of hyperons or a possible deconfinement phase transition to quark matter. I will finally explain how future observations may help to understand the behaviour of matter under extreme conditions of density and temperature.

About the Speaker: Domenico Logoteta is a researcher at the University of Pisa and INFN, specializing in the theoretical modeling of dense nuclear matter and its astrophysical applications. His research utilizes ab initio methods and realistic many-body interactions to derive the nuclear equation of state from a fundamental microscopic level. He is a prominent expert on the role of hyperons and quark deconfinement, investigating how these exotic components influence the internal structure and stability of compact objects. His work plays a critical role in interpreting gravitational wave signals and electromagnetic data from binary neutron star mergers within the framework of multimessenger astronomy. By bridging nuclear physics and general relativity, he explores the extreme conditions of the universe to determine the maximum mass and radius of neutron stars.

About the Seminar: This event is a Joint Seminar organized by Davide Gerosa on behalf of INFN Bicocca and the Bicocca Astroseminar series.