THE MICROSCOPIC APPROACH TO NUCLEAR MATTER AND NEUTRON STAR MATTER

Microscopic many-body theory of nuclei and neutron star matter

We review the recent progress in application of microscopic many-body theory, based on realistic twoand threenucleon interactions, to nuclei and neutron star matter. Modern models of nuclear interactions are discussed along with quantum Monte Carlo methods used to calculate nuclear and nucleon matter properties. Essentially exact Green’s function Monte Carlo calculations have been successfully ...

Many-body Theory of Nuclear and Neutron Star Matter

We present results obtained for nuclei, nuclear and neutron star matter, and neutron star structure obtained with the recent Argonne v18 twonucleon and Urbana IX three-nucleon interactions including relativistic boost corrections. These interactions predict that matter will undergo a transition to a spin layered phase with neutral pion condensation. We also consider the possibility of a transit...

Superfluidity in Neutron Star Matter

Formation of Nuclear “Pasta” in Cold Neutron Star Matter

Formation and decay of rod-like and slab-like nuclei, as may be encountered in the outer parts of neutron stars, are examined within a zero-temperature stability analysis with respect to perturbations inducing fission and proton clustering. The nonspherical nuclei are found to be stable against these perturbations, implying the possibility that the size of the stellar region containing such nuc...

Neutron matter - Quark matter phase transition and Quark star

We consider the neutron matter quark matter phase transition along with possible existence of hybrid quark stars. The equation of state for neutron matter is obtained using a nonperturbative method with pion dressing of the neutron matter and an analysis similar to that of symmetric nuclear matter. The quark matter sector is treated perturbatively in the small distance domain. For bag constant ...