Functional renormalization group approach to neutron matter

Abstract

The chiral nucleon-meson model, previously applied to systems with equal number of neutrons and protons, is extended to asymmetric nuclear matter. Fluctuations are included in the framework of the functional renormalization group. The equation of state for pure neutron matter is studied and compared to recent advanced many-body calculations. The chiral condensate in neutron matter is computed as a function of baryon density. It is found that, once fluctuations are incorporated, the chiral restoration transition for pure neutron matter is shifted to high densities, much beyond three times the density of normal nuclear matter.

5 pages, 4 figures, to appear in Phys. Lett. B

References in corpus (17)

• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Exact evolution equation for the effective potential
• Constraining the Symmetry Parameters of the Nuclear Interaction
• The maximum mass and radius of neutron stars and the nuclear symmetry energy
• The equation of state of neutron matter, symmetry energy, and neutron star structure
• Chiral approach to nuclear matter: Role of two-pion exchange with virtual delta-isobar excitation
• Nuclear chiral dynamics and thermodynamics
• Solving non-perturbative flow equations
• Non-perturbative thermal flows and resummations
• Dense baryonic matter: constraints from recent neutron star observations
• Chemical freeze-out in heavy ion collisions at large baryon densities
• Chiral thermodynamics of nuclear matter
• Chiral Fermi liquid approach to neutron matter
• Thermodynamic phases and mesonic fluctuations in a chiral nucleon-meson model
• The chiral condensate in neutron matter
• Dense nucleonic matter and the renormalization group

Cited by in corpus (14)

• Polyakov loop modeling for hot QCD
• Dense baryonic matter: constraints from recent neutron star observations
• Functional renormalization group studies of nuclear and neutron matter
• From asymmetric nuclear matter to neutron stars: a functional renormalization group study
• Chiral Mirror-Baryon-Meson Model and Nuclear Matter beyond Mean-Field
• Functional Renormalization Group Study of the Chiral Phase Transition Including Vector and Axial-vector Mesons
• Functional renormalization group study of the Quark-Meson model with $\omega$ meson
• Emergent Hadrons and Diquarks
• From quarks and gluons to color superconductivity at supranuclear densities
• Speed of sound in dense strong-interaction matter
• Functional renormalization group study of the critical region of the quark-meson model with vector interactions
• Relativistic self-energy decomposition of nuclear symmetry energy and equation of state of neutron matter within QCD sum rules
• Harmonic expansion of the effective potential in Functional Renormalization Group at finite chemical potential
• Neutron matter within QCD sum rules