Speaker
Description
Using an equivparticle model with mean-field approximation (MFA), we systematically investigate quark matter properties across scales, from microscopic multibaryon states to macroscopic compact dwarfs. First, we determine the mass spectra of color-singlet $N$-quark configurations ($N=3$ to $18$) based on SU(6) symmetry and Bayesian inference. Our results predict several bound states, including the H-dibaryon and $D_{03}$, providing a microphysical basis for pulsar-like objects.
By incorporating linear confinement and perturbative interactions, we extend this framework to study strangelets and nonstrange quark matter ($ud$QM) nuggets. We examine the structures of compact dwarfs where these nuggets form body-centered cubic lattices in a uniform electron background. Despite the inherent stability of larger nuggets, these dwarfs remain stable against fusion due to the Coulomb barrier. Furthermore, we find that the radial oscillation frequencies of $ud$QM and strangelet dwarfs are typically higher than those of traditional white dwarfs. Even when covered by normal matter, these objects maintain their stability without exceeding the mass-radius limits of ordinary white dwarfs. This unified study establishes a consistent link between the microscopic mass spectra of multibaryon states and the dynamical stability of macroscopic compact stars.