Peking University

Mass Probe of Tetrahedral Symmetry in Atomic Nuclei

F. F. Xu, P. W. Zhao

Tetrahedral symmetry has long been predicted as an exotic shape degree of freedom in atomic nuclei, yet clear experimental manifestations remain elusive. We show that the triple bi…

Efficient emulation of nuclear ground states with neural-network variational Monte Carlo and eigenvector continuation

Mao Li, Yilong Yang, Pengwei Zhao

An efficient emulator for \emph{ab initio} calculations of nuclear ground-state properties is developed by integrating the neural-network variational Monte Carlo framework, Feynman…

Neural-network excited states of $A = 4$ nuclei and hypernuclei

Zi-Xiao Zhang, Yi-Long Yang, Xiao-Lu Qian +4

We present the first variational Monte Carlo study of nuclear and hypernuclear excited states within the neural-network quantum states (NQS) framework. We implement both the overla…

nucl-th2026★ 2 cited

Dipole response in deformed halo nuclei $^{42} Mg$ and $^{44} Mg$

X. F. Jiang, Z. Z. Li, X. W. Sun +1

The quasiparticle finite amplitude method based on the deformed relativistic Hartree-Bogoliubov theory in continuum has been developed for the noncharge-exchange multipole response…

Stochastic many-body perturbation theory for high-order calculations

Xin Zhen, Rongzhe Hu, Junchen Pei +1

High-order perturbative $ab initio$ calculations are challenging due to the rapidly growing configuration space and the difficulty of assessing convergence. In this letter…

Neutron skin thickness and its volume and surface contributions in berkelium isotopes

Peng Wang, Zi-Dan Huang, Shuang-Quan Zhang +1

Accurate determination of the neutron skin thickness ( $Δ R_{np}$ ) in finite nuclei is essential for constraining the density dependence of the nuclear symmetry energy. This work…

De-excitation effects on entanglement in multi-nucleon transfer reactions

Y. C. Yang, D. D. Zhang, D. Vretenar +4

This study quantifies the impact of nuclear de-excitation on correlations in multi-nucleon transfer (MNT) reactions. To bridge the gap between initial collision dynamics and final…

nucl-th2026★ 1 cited

Chiral three-nucleon forces for the new local position-space two-nucleon potential in $ab initio$ many-body calculations

Rongzhe Hu, Jianguo Li, Siqin Fan +1

Three-nucleon force (3NF) plays an important role in understanding the structure of finite nuclei and the saturation properties of infinite nuclear matter. More specifically, 3NF s…

nucl-th2025★ 2 cited

Complex-energy eigenvector continuation for nuclear many-body broad resonances

Rongzhe Hu, Nicolas Michel, Zhicheng Xu +2

Broad resonances are a unique phenomenon in nuclear many-body systems. Theoretical studies usually involve the continuum degree of freedom, which drastically increases the model sp…

nucl-th2025★ 2 cited

Non-local orbital-free density functional theory incorporating nuclear shell effects

Xinhui Wu, Gianluca Colò, Kouichi Hagino +1

Incorporating nuclear shell effects within the framework of orbital-free density functional theory (DFT) has remained a longstanding challenge in nuclear physics. While the Hohenbe…

nucl-th2025★ 8 cited

Triaxial relativistic Hartree-Bogoliubov theory in continuum for exotic nuclei

Kaiyuan Zhang, Shuangquan Zhang, Jie Meng

A triaxial relativistic Hartree-Bogoliubov theory in continuum (TRHBc) has been developed to incorporate triaxial deformation, pairing correlations, and continuum effects in a full…

Axially Deformed Proton-Neutron Relativistic Quasiparticle Finite Amplitude Method for Charge-Exchange Transitions

Chen Chen, Zhengzheng Li, Yinu Zhang +1

The quasiparticle finite amplitude method (QFAM) is extended to describe charge-exchange transitions based on the relativistic Hartree-Bogoliubov model, adopting the point-coupling…

The role of near neutron drip-line nuclei in the $r$ -process

T. Yu, Y. Y. Guo, X. F. Jiang +1

The role of near neutron-drip-line nuclei in the rapid neutron-capture process ( $r$ -process) is studied with the classical $r$ -process model. Simulations under different astrophysi…

Extended applicability domain of viscous anisotropic hydrodynamics in (2+1)-D Bjorken flow with transverse expansion

Yiyang Peng, Victor E. Ambrus, Clemens Werthmann +3

We perform (2+1)-D simulations of viscous anisotropic hydrodynamics (VAH) under boost-invariant and conformal conditions. Comparing both VAH and traditional viscous hydrodynamics w…

Algebraic description of the triaxially to axially rotational shape phase transition

Yu Zhang, Yu Xin Liu, Feng Pan +1

Within the framework of the interacting boson model, we propose a novel algebraic scheme to describe spin-dependent structural evolutions in triaxial nuclei. Our analysis demonstra…

Machine learning the single- $Λ$ hypernuclei with neural-network quantum states

Zi-Xiao Zhang, Yi-Long Yang, Wan-Bing He +3

Single- $Λ$ hypernuclei are the most straightforward extension of atomic nuclei. A thorough description of baryonic system beyond first-generation quark sector is indispensable for…

nucl-th2025★ 3 cited

The charge radii of calcium isotopes within relativistic density functional theory: nucleon's finite-size and quadrupole shape fluctuation effects

H. H. Xie, J. Li, Y. L. Yang +1

The anomaly in the charge radii of Ca isotopes has been puzzling for nuclear theory for decades. We present the first self-consistent solution to this puzzle within the density fun…

$Ab Initio$ Exact Calculation of Strongly Correlated Nucleonic Matter

Rongzhe Hu, Shaoliang Jin, Xin Zhen +4

Dense nucleonic matter is of vital importance for understanding compact stars and inferring the transition into deconfined quark phase. We present $ab initio$ exact calcul…

nucl-th2025★ 4 cited

Perturbative renormalization of chiral nuclear forces at subleading order in 3S1-3D1 channel

Rui Peng, Bingwei Long, Fu-Rong Xu

We investigate renormalization of chiral nuclear forces in the coupled channel of 3S1-3D1 of nucleon-nucleon scattering. The one-pion exchange potential is treated nonperturbativel…

Covariant Energy Density Functionals for Neutron Star Matter Equation of State Modeling: Cross-Comparison Analysis Using \texttt{CompactObject}

João Cartaxo, Chun Huang, Tuhin Malik +5

This study analyzes and contrasts different phenomenological methods used to model the nuclear equation of state (EOS) for neutron star matter based on covariant energy density fun…