We investigate the implications of neutron star observations for understanding the origin of nucleon mass using a framework that combines three complementary approaches: the parity doublet model for hadronic matter below 2n0, the Nambu-Jona-Lasinio (NJL) model for quark matter above 5n0, and a model-independent analysis of the intermediate density region based on fundamental physical...
Neutron stars exhibit sudden changes of its rotational velocity, known as "pulsar glitches". It has been believed that glitches are mainly caused by superfluid neutron vortices in the inner crust of neutron stars. However, importance of contributions of the outer core has been recently discussed, and further microscopic investigations of quantum vortices and fluxtubes in the outer core of...
When a core-collapse supernova (CCSN) explodes, it emits an enormous number of neutrinos, which carry away approximately 99% of the total energy.
These energetic neutrinos play a crucial role in both the explosion mechanism and nucleosynthesis as they propagate through the CCSN environment.
The propagation of neutrinos can be described by the general relativistic Boltzmann equation, in which...
Nuclear motion in molecules can be monitored in real time by using the combination of two laser pulses, one for initializing the interest dynamics and one for exciting the molecule to emiss the high-frequency photons, which is also known as high-order harmonic generation (HHG). In this work, we study the possibility of using HHG to monitor the movement of hydrogen nucleus in the dissociative...
Recent studies of nuclei near driplines have signifcantly enhanced our understanding of nuclear structure. In those nuclei, the continuum coupling is crucial in reproducing weakly bound and unbound phenomena. To study the observables of the nuclei as open quantum systems self-consistently, we developed valence-space efective operators in the Berggren basis using many-body perturbation...
Entanglement is a unique feature of quantum mechanics that remains relatively unexplored in the context of nuclear physics. In this work, we investigate spin entanglement in elastic proton-proton scattering with unpolarized beams. By analyzing the final spin density matrix from the scattering amplitude, we find two regimes where the outgoing spin state has near-maximal purity: a known...
One of the important correlations in atomic nuclei is pairing, where two nucleons form a pair. The pairing correlation can lead to a phase transition into a superfluid state, analogous to the superconducting state observed in electronic systems. In the superfluid phase, the global U(1) gauge symmetry is spontaneously broken. As a result, a new type of the collective mode emerges: the pair...
Hypernuclear systems and neutron stars offer complementary environments for exploring baryon interactions across a wide range of densities. This report investigates $\Xi^{-}$ hypernuclear structure and the equation of state (EOS) of hyperon-rich matter using relativistic density functional theory. The structure of selected light $\Xi^{-}$ hypernuclei, such as $^{15}_{\Xi^{-}}$C and...
We investigate the evolution of nuclear shell structure in neutron-rich isotopes through the lens of quantum information theory, using quantum entanglement entropy as a diagnostic tool. Employing shell model calculations, we compute both single-orbital and total correlation entropy for oxygen and calcium isotopic chains. Our results identify the emergence of new magic numbers at ( N=14, 16 )...
Charge-exchanging processes such as beta decay, neutrinoless double-beta decay, and Gamow-Teller giant resonances are observed in a wide region of the nuclear chart and play important roles in nuclear physics and related fields. Theoretical descriptions based on nuclear density functional theory (DFT) enable us to calculate all the nuclei in the chart. A standard approach for describing...
