Neutron matter at finite temperature
نویسندگان
چکیده
منابع مشابه
Neutron matter at finite temperature
The nuclear equation of state plays a central role in the physics of neutron stars and core-collapse supernovae. Renormalization group methods coupled with effective field theory offer a systematic approach to nuclear matter: For low-momentum interactions Vlow k with cutoffs around 2 fm−1, the strong short-range repulsion in conventional nucleon-nucleon (NN) interactions and the tensor force ar...
متن کاملN ov 2 00 7 Neutron matter at finite temperature
We calculate the neutron matter equation of state at finite temperature based on low-momentum twoand three-nucleon interactions. The free energy is obtained from a loop expansion around the Hartree-Fock energy, including contributions from normal and anomalous diagrams. We focus on densities below saturation density with temperatures T 6 10MeV and compare our results to the model-independent vi...
متن کاملFerromagnetic instabilities in neutron matter at finite temperature with the Skyrme interaction
The properties of spin-polarized neutron matter are studied at both zero and finite temperature using Skyrmetype interactions. It is shown that the critical density at which ferromagnetism takes place decreases with temperature. This unexpected behavior is associated to an anomalous behavior of the entropy that becomes larger for the polarized phase than for the unpolarized one above a certain ...
متن کاملLow density Neutron Matter at Finite and Zero Temperatures
This report concerns the energy of neutron-matter for densities below 0.15fm and temperatures at and below 10MeV . Separable NN-interactions are obtained by inverse scattering from the experimental phase-shifts with specified momentum cut-offs Λ. Results of Brueckner-Bloch-DeDomicis as well as finite temperature Green’s function calculations show independence of cut-off for Λ ≥ 3. Agreement wit...
متن کامل1 Spin susceptibility of neutron matter at zero temperature
The Auxiliary Field Diffusion Monte Carlo method is applied to compute the spin susceptibility and the compressibility of neutron matter at zero temperature. Results are given for realistic interactions which include both a two–body potential of the Argonne type and the Urbana IX three–body potential. Simulations have been carried out for about 60 neutrons. We find an overall reduction of the s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 2008
ISSN: 0375-9474
DOI: 10.1016/j.nuclphysa.2008.02.309