Screening effects in superfluid nuclear and neutron matter within Brueckner theory
TLDR
In this paper, the effects of medium polarization on pairing in neutron and nuclear matter were studied and the screening potential was calculated in the RPA limit, suitably renormalized to cure the low density mechanical instability of nuclear matter.Abstract:
Effects of medium polarization are studied for ${}^{1}{S}_{0}$ pairing in neutron and nuclear matter. The screening potential is calculated in the RPA limit, suitably renormalized to cure the low density mechanical instability of nuclear matter. The self-energy corrections are consistently included resulting in a strong depletion of the Fermi surface. All medium effects are calculated based on the Brueckner theory. The ${}^{1}{S}_{0}$ gap is determined from the generalized gap equation. The self-energy corrections always lead to a quenching of the gap, which is enhanced by the screening effect of the pairing potential in neutron matter, whereas it is almost completely compensated by the antiscreening effect in nuclear matter.read more
Citations
More filters
Journal ArticleDOI
Physics of Neutron Star Crusts
Nicolas Chamel,Pawel Haensel +1 more
TL;DR: This review summarizes the progress, which has been achieved over the last few years, in modeling neutron star crusts, both at the microscopic and macroscopic levels.
Journal ArticleDOI
Nuclear Energy Density Optimization
M. Kortelainen,M. Kortelainen,T. Lesinski,T. Lesinski,Jorge J. Moré,Witold Nazarewicz,Witold Nazarewicz,Witold Nazarewicz,Jason Sarich,Nicolas Schunck,Nicolas Schunck,Mario Stoitsov,Mario Stoitsov,Mario Stoitsov,Stefan M. Wild +14 more
TL;DR: This work carries out state-of-the-art optimization of a nuclear energy density of Skyrme type in the framework of the Hartree-Fock-Bogoliubov (HFB) theory, with new model-based, derivative-free optimization algorithm.
Journal ArticleDOI
The BCS–BEC crossover: From ultra-cold Fermi gases to nuclear systems
TL;DR: In this article, the authors focus on the BCS-BEC crossover in ultra-cold Fermi gases and nuclear matter, and discuss the mean field treatment of the superfluid phase, both for homogeneous and inhomogeneous systems.
Journal ArticleDOI
The BCS-BEC crossover: From ultra-cold Fermi gases to nuclear systems
TL;DR: The BCS-BEC crossover has recently been realized experimentally, and essentially in all of its aspects, with ultra-cold Fermi gases and nuclear matter as mentioned in this paper.
Journal ArticleDOI
Neutron Matter from Low to High Density
TL;DR: In this paper, the authors review the behavior of very low density neutron matter, which forms a strongly paired superfluid and is thus similar to cold Fermi atoms, although at energy scales that differ by many orders of magnitude.
References
More filters
Book
The Nuclear Many-body Problem
TL;DR: In this paper, the Hartree-Fock method pairing correlations and superfluid nuclei was used to restore broken symmetries in the generator coordinate method of the generator-coordinate method.
Journal ArticleDOI
Theory of Finite Fermi Systems and Applications to Atomic Nuclei
A. B. Migdal,S. A. Moszkowski +1 more
Book
Theory Of Interacting Fermi Systems
TL;DR: In this article, a detailed exposition of field theoretical methods as applied to zero temperature Fermi liquids is provided, with special attention paid to the concept of quasiparticles.
BookDOI
Nuclear methods and the nuclear equation of state
TL;DR: The Brueckner-Bethe-Goldstone expansion, R. Dickoff Dirac-Bruecker approach for finite nuclei, H. Muether long range correlations, T. Kuo non-nucleonic degrees of freedom, L.S. Lombardo astrophysical applications, I. Bombaci EOS at finite temperature, M. Baldo superfluidity, U.T.
Book ChapterDOI
Superfluidity in Neutron Star Matter
TL;DR: In fact, during more than two decades of neutron-star physics the presence of neutron and proton superfluid phases has been invoked to explain the dynamical and thermal evolution of a neutron star as discussed by the authors.
Related Papers (5)
Pairing in Nuclear Systems: From Neutron Stars to Finite Nuclei
D. J. Dean,Morten Hjorth-Jensen +1 more