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Neutron star equation of state and the possibility of complex self-energy in Landau theory of a Fermi liquid in the presence of a strong, quantizing magnetic field

2005/09/30 by Soma Mandal, Roni Saha, Sutapa Ghosh +1 · 9 citations
Earth and Planetary Sciences · Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Energy (signal processing) #Equation of state #Fermi liquid theory #High-pressure geophysics and materials #Landau quantization #Landau theory #Magnetic field #Neutron #Neutron star #Nuclear matter #Nuclear physics #Nucleon #Omega #Physics #Quantum mechanics #Superconductivity #astro-ph #cond-mat.stat-mech #nucl-th

paper · pdf · doi:10.1103/physrevc.74.015801

published in Physical Review C 74(1) (American Institute of Physics) · REVTEX 14 Pages, no figure

arxiv created 2006/05/15 · openalex publication_date 2006/07/12 · arxiv updated 2013/11/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Using the relativistic version of Landau theory of Fermi liquid with \ensuremathσ\text\ensuremath-\ensuremathω and \ensuremathρ mesons exchange, we have obtained an equation state for dense neutron star matter in the presence of a strong, quantizing magnetic field. It is found that in this scenario the self-energies of both neutron and proton components of dense neutron star matter become complex under certain physical conditions. To be more specific, it is observed that in the exchange diagrams of \ensuremathσ,\ensuremathω and neutral \ensuremathρ transfer processes and in the direct interaction diagram with \ensuremathρ_\ifmmode±\else\textpm\fi transfer reactions, the nucleon self-energies become complex in nature.

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