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[PENDING] Elementary excitations in homogeneous superfluid neutron star matter: Role of the proton component

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Academic year: 2024

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FIG. 1: Proton excitation spectrum with pairing interaction only. The proton density corresponds to the case of neutron-star matter at nuclear saturation density, with a proton fraction fixed by β equilibrium, which means a proton Fermi momentum k Fp = 0.5
FIG. 2: Proton excitation spectrum with pairing and Coulomb interactions, ignoring the electron component
FIG. 3: Proton excitation spectrum with pairing and Coulomb interactions, including the electron component
FIG. 4: Velocity of the Goldstone mode as a function of proton density. v G : velocity of the Goldstone mode in the pure pairing case (purepair)
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