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Collective excitations in the neutron star inner crust

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arxiv 1107.4209 v2 pith:P4SU6URT submitted 2011-07-21 nucl-th astro-ph.HE

Collective excitations in the neutron star inner crust

classification nucl-th astro-ph.HE
keywords collectivecrustdescribedexcitationsinnermodesneutronspectrum
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study the spectrum of collective excitations in the inhomogeneous phases in the neutron star inner crust within a superfluid hydrodynamics approach. Our aim is to describe the whole range of wavelengths, from the long-wavelength limit which can be described by macroscopic approaches and which is crucial for the low-energy part of the spectrum, to wavelengths of the order of the dimensions of the Wigner-Seitz cells, corresponding to the modes usually described in microscopic calculations. As an application, we will discuss the contribution of these collective modes to the specific heat of the "lasagna" phase in comparison with other known contributions.

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  1. Interaction between nuclear clusters and superfluid phonons in the neutron-star inner crust

    nucl-th 2026-04 unverdicted novelty 7.0

    Microscopic DFT+QRPA calculation shows the effective coupling constant between nuclear clusters and superfluid phonons in the neutron-star inner crust is substantially smaller than hydrodynamical estimates due to supp...