Publications (40)
Triaxial nuclear models and the outer crust of nonaccreting cold neutron stars
Lu Guo, M. Hempel, J. Schaffner-Bielich +1
The properties and composition of the outer crust of nonaccreting cold neutron stars are studied by applying the model of Baym, Pethick, and Sutherland (BPS) and taking into accoun…
RAD: Retrieval High-quality Demonstrations to Enhance Decision-making
Lu Guo, Yixiang Shan, Zhengbang Zhu +5
The paper proposes RAD, a method that improves offline reinforcement learning by retrieving high-return states from the dataset and generating sub-trajectories toward these targets…
Fission fragment distributions within time-dependent density functional theory
Yun Huang, Xiang-Xiang Sun, Lu Guo
A notable issue, the proper description of mass and charge distributions of fission fragments within nonadiabatic descriptions of fission dynamics, is investigated by performing do…
Applicability of self-consistent mean-field theory
Lu Guo, Fumihiko Sakata, Enguang Zhao
Within the constrained Hartree-Fock (CHF) theory, an analytic condition is derived to estimate whether a concept of the self-consistent mean field is realized or not in level repul…
Microscopic study of the compound nucleus formation in cold-fusion reactions
Xiang-Xiang Sun, Lu Guo
The understanding of the fusion probability is of particular importance to reveal the mechanism of producing superheavy elements. We present a microscopic study of the compound nuc…
Impact of tensor force on quantum shell effects in quasifission reactions
Liang Li, Lu Guo, K. Godbey +1
Quantum shell effects drive many aspects of many-body quantal systems and their interactions. Among these are the quasifission reactions that impede the formation of a compound nuc…
Hyperon-Nucleon Spectrometer
Xiaozhi Bai, Xu Cao, Zhe Cao +237
Chirality lies at the heart of low-energy QCD, governing the symmetry structure that shapes hadron masses and strong interaction dynamics. Among the most compelling open questions…
Microscopic quasifission dynamics of the reaction
Liang Li, Lu Guo
Synthesizing superheavy elements (SHEs) like is severely hindered by the dominant quasifission (QF) channel, which prevents compound nucleus formation. Understanding QF dyn…
The Role of Tensor Force in Heavy-Ion Fusion Dynamics
Lu Guo, Cedric Simenel, Long Shi +1
The tensor force is implemented into the time-dependent Hartree-Fock (TDHF) theory so that both exotic and stable collision partners, as well as their dynamics in heavy-ion fusion,…
Route to in situ synthesis of epitaxial Pr2Ir2O7 thin films guided by thermodynamic calculations
Lu Guo, Shun-Li Shang, Neil Campbell +4
In situ growth of pyrochlore iridate thin films has been a long-standing challenge due to the low reactivity of Ir at low temperatures and the vaporization of volatile gas species…
Microscopic Formulation of Interacting Boson Model for Rotational Nuclei
Kosuke Nomura, Takaharu Otsuka, Noritaka Shimizu +1
We propose a novel formulation of the Interacting Boson Model (IBM) for rotational nuclei with axially-symmetric strong deformation. The intrinsic structure represented by the pote…
The influence of tensor force on the microscopic heavy-ion interaction potential
Lu Guo, K. Godbey, A. S. Umar
Background: The tensor interaction is known to play an important role in the nuclear structure studies of exotic nuclei. However, most microscopic studies of low-energy nuclear rea…
Effects of the tensor force on low-energy heavy-ion fusion reactions: A mini review
Xiang-Xiang Sun, Lu Guo
In recent several years, the tensor force, one of the most important components of the nucleon-nucleon force, has been implemented in time-dependent density functional theories and…
Production of proton-rich nuclei in the vicinity of 100Sn via multinucleon transfer reactions
Zhenji Wu, Lu Guo, Zhong Liu +1
The production of new proton-rich nuclei in the vicinity of 100Sn is investigated via multinucleon transfer reactions within the framework of microscopic time-dependent Hartree-Foc…
Boost-invariant mean field approximation and the nuclear Landau-Zener effect
Lu Guo, J. A. Maruhn, P. -G. Reinhard
We investigate the relation between time-dependent Hartree-Fock (TDHF) states and the adiabatic eigenstates by constructing a boost-invariant single-particle Hamiltonian. The metho…
Vidi: Large Multimodal Models for Video Understanding and Editing
Vidi Team, Celong Liu, Chia-Wen Kuo +20
Humans naturally share information with those they are connected to, and video has become one of the dominant mediums for communication and expression on the Internet. To support t…
Role of the tensor force in induced fission of 240Pu
Yun Huang, Xiang-Xiang Sun, Lu Guo
Results: We find that the tensor force affects the height of fission barriers and the double-humped structure of fission path of 240Pu. On the PES, the fission valley becomes large…
Characteristic Feature of Self-Consistent Mean-Field in Level Crossing Region
Lu Guo, Fumihiko Sakata, En-Guang Zhao
A shape change of the self-consistent mean-field induced by a configuration change is discussed within the conventional constrained Hartree-Fock (CHF) theory. It is stressed that a…
New neutron-rich isotope production in Sm+Gd
Ning Wang, Lu Guo
Deep inelastic scattering in Sm+Gd at energies above the Bass barrier is for the first time investigated with two different microscopic dynamics approaches: improve…
Spontaneous Hall Effect enhanced by local Ir moments in epitaxial PrIrO thin films
Lu Guo, Neil Campbell, Yongseong Choi +10
Rare earth pyrochlore Iridates (RE2Ir2O7) consist of two interpenetrating cation sublattices, the RE with highly-frustrated magnetic moments, and the Iridium with extended conducti…
Simultaneous optical power delivery and distributed sensing through cross-band wavelength multiplexing over fiber link
Tianye Huang, Lu Guo, Xinyu Wang +9
Optical fibers offer significant advantages in both power delivery and distributed sensing. In remote areas where stable power supply is not easy to access, the distributed optical…
Power-over-fiber and distributed acoustic sensing hybridization in single fiber channel
Jing Zhang, Yao Chen, Tianye Huang +6
The efficient and independent operation of power-over-fiber (PoF) and distributed acoustic sensing (DAS) has been demonstrated using standard single-mode fiber (SSMF). A transmissi…
Impact of octupole correlation on the inverse quasifission in collisions
Zhenji Wu, Xiang-Xiang Sun, Lu Guo
Multinucleon transfer (MNT) reactions offer a promising pathway to synthesize neutron-rich heavy nuclei, but the mechanism of inverse quasifission, as a key reaction channel of MNT…
Microscopic studies of production cross sections in multinucleon transfer reaction Ni+Sn
Zhenji Wu, Lu Guo
\item[Background] Multinucleon transfer reaction at low-energy collisions is considered to be a promising method for the production of new exotic nuclei, which are difficult to be…
Microscopic study on fusion reactions and the effect of tensor force
Xiang-Xiang Sun, Lu Guo, A. S. Umar
We provide a microscopic description of the fusion reactions between Ca and Ni. The internuclear potentials are obtained using the density-constrained (DC) time-de…
Influence of the tensor interaction on heavy-ion fusion cross sections
K. Godbey, Lu Guo, A. S. Umar
[Background] While the tensor interaction has been shown to significantly affect the nuclear structure of exotic nuclei, its influence on nuclear reactions has only recently been i…
Rotational damping in a multi- shell particles-rotor model
Lu Guo, Jie Meng, Enguang Zhao +1
The damping of collective rotational motion is investigated by means of particles-rotor model in which the angular momentum coupling is treated exactly and the valence nucleons are…
OpComm: A Reinforcement Learning Framework for Adaptive Buffer Control in Warehouse Volume Forecasting
Wilson Fung, Lu Guo, Drake Hilliard +11
Accurate forecasting of package volumes at delivery stations is critical for last-mile logistics, where errors lead to inefficient resource allocation, higher costs, and delivery d…
Effect of tensor force on dissipation dynamics in time-dependent Hartree-Fock theory
Gao-Feng Dai, Lu Guo, En-Guang Zhao +1
The role of tensor force on the collision dynamics of O+O is investigated in the framework of a fully three-dimensional time-dependent Hartree-Fock theory. The calcul…
Vidi2.5: Large Multimodal Models for Video Understanding and Creation
Vidi Team, Chia-Wen Kuo, Chuang Huang +31
Video has emerged as the primary medium for communication and creativity on the Internet, driving strong demand for scalable, high-quality video production. Vidi models continue to…
Structural and Electronic Recovery Pathways of a Photoexcited Ultrathin VO2 Film
Haidan Wen, Lu Guo, Eftihia Barnes +10
The structural and electronic recovery pathways of a photoexcited ultrathin VO2 film at nanosecond time scales have been studied using time-resolved x-ray diffraction and transient…
Dissipation dynamics and spin-orbit force in time-dependent Hartree-Fock theory
Gao-Feng Dai, Lu Guo, En-Guang Zhao +1
We investigate the one-body dissipation dynamics in heavy-ion collisions of + using a fully three-dimensional time-dependent Hartree-Fock (TDHF) theory…
To what extent does the self-consistent mean-field exist?
Lu Guo, Fumihiko Sakata, En-Guang Zhao +1
A non-convergent difficulty near level-repulsive region is discussed within the self-consistent mean-field theory. It is shown by numerical and analytic studies that the mean-field…
Conservation Properties in the Time-Dependent Hartree Fock Theory
Lu Guo, J. A. Maruhn, P. -G. Reinhard +1
We discuss the conservation of angular momentum in nuclear time-dependent Hartree-Fock calculations for a numerical representation of wave functions and potentials on a three-dimen…
Nuclear Giant Resonances and Linear Response
P. -G. Reinhard, Lu Guo, J. A. Maruhn
We search for nonlinear effects in nuclear giant resonances (GRs), in particular the isovector dipole and the isoscalar quadrupole modes. To that end, we employ a spectral analysis…
Microscopic Investigation of Fusion and Quasifission Dynamics
Liang Li, Xiang-Xiang Sun, Lu Guo
We introduce the application of Time-Dependent Hartree-Fock (TDHF) theory to two key aspects of heavy-ion reaction dynamics for producing superheavy elements: fusion and quasi-fiss…
Node-Level Financial Optimization in Demand Forecasting Through Dynamic Cost Asymmetry and Feedback Mechanism
Alessandro Casadei, Clemens Grupp, Sreyoshi Bhaduri +6
This work introduces a methodology to adjust forecasts based on node-specific cost function asymmetry. The proposed model generates savings by dynamically incorporating the cost as…
Isotopic trends of quasifission and fusion-fission in the reactions Ca+Pu
Lu Guo, Caiwan Shen, Chong Yu +1
Background: Quasifission and fusion-fission are primary mechanisms to prevent the production of superheavy elements. The recent experimental measurements reveal that the fusion-eva…
Triaxiality and shape coexistence in Germanium isotopes
Lu Guo, J. A. Maruhn, P. -G. Reinhard
The ground-state deformations of the Ge isotopes are investigated in the framework of Gogny-Hartree-Fock-Bogoliubov (HFB) and Skyrme Hartree-Fock plus pairing in the BCS approximat…
Impact of tensor forces on quasifission product yield distributions
Liang Li, Lu Guo, K. Godbey +1
We employ the microscopic time-dependent Hartree-Fock (TDHF) theory to study the 48Ca+249Bk and 48Ti+238U systems, taking into account the dependence on orientation for deformed nu…