Preprint
Oct 2026
Universal Relations Meet Causality: Bounding the Dynamical Love Number of Neutron Stars
The frequency-dependent tidal response of a neutron star is constrained by causality, reality and passivity, which turn a suitably rescaled response into a holomorphic self-map of the upper complex frequency half-plane after some suitable conditions. The Schwarz--Pick theorem then bounds the leading dynamical correctio...
A. Kehagias, A. Riotto
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