Feng-Shou Zhang

Beijing Normal University

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Jun Su

Sun Yat-sen University

Long Zhu

Sun Yat-sen University

Gen Zhang

Guangxi University

Jingjing Li

Nanjing University of Aeronautics and Astronautics

Fei Mao

University of South China

Pei-Wei Wen

China Institute of Atomic Energy

Rong An

Beijing Normal University

Lie-Wen Chen

Shanghai Jiao Tong University

Wei Cheng

Shanghai Innovative Research Center of Traditional Chinese Medicine

Li-Gang Cao

Beijing Academy of Science and Technology

Cooperative Institutions

Beijing Normal University

150

Chinese Academy of Sciences

149

Tsinghua University

Beijing Radiation Center

University of Chinese Academy of Sciences

Institute of Modern Physics

Sichuan University

China Institute of Atomic Energy

Peking University

Sun Yat-sen University

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Dynamics of water dimer in femtosecond laser pulses: a simulation study

Modern Physics Letters B (2014)

Zhiping Wang Feng-Shou Zhang Xuefeng Xu Yanbiao Wang Chaoyi Qian

In this paper, we study the electronic and ionic dynamics of the water dimer subject to short and intense laser pulses. The dynamics is described by means of the time-dependent local-density approximation coupled to ionic molecular dynamics (TDLDA-MD) non-adiabatically. The impact of laser frequency on the response of water dimer is discussed by exploring the ionization, the dipole signal and bond lengths of water dimer. Furthermore, it is found that the water donor is more sensitive to the laser field than the water acceptor and the probabilities for the ionic states show the general pattern of the typical sequence of the interlaced production maxima.

Water dimer

Acceptor

10.1142/s0217984914501796

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Isotopic dependence of nuclear temperatures

Physical Review C (2011)

Jun Su Feng-Shou Zhang

A systematic study of isotope temperatures has been presented for heavy-ion collisions at 600 MeV/nucleon via the isospin-dependent quantum molecular dynamics model in the company of the statistical decay model (GEMINI). We find that the isospin dependence of the isotope temperatures in multifragmentation is weak; however, this effect is still visible over a wide isotopic range. The isotope temperatures for the neutron-rich projectiles are larger than those for the neutron-poor projectiles. We also find that the isotope temperatures calculated by the model decrease with increasing nuclear mass.

10.1103/physrevc.84.037601

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Citations (36)

Electronic stopping of protons in magnesium from first principles

Physical review. A/Physical review, A (2024)

Chang-Kai Li Yang Liu Jianming Xue Xiaoping Ouyang Feng-Shou Zhang

The electronic energy loss rate from an energetic proton to electrons of an alkali metal magnesium (Mg) is investigated using real-time time-dependent density functional theory. Nonequilibrium simulations under various impact geometries are conducted to elucidate the role of the impact parameter in the dissipation mechanism. Unlike electronic stopping, which is significantly underestimated under channeling trajectories in the velocity regime around and above the stopping maximum, the predicted electronic stopping along the off-channeling trajectory, which explicitly accounts for the occasionally strong interaction with tightly bound inner-shell electrons, demonstrates quite satisfactory agreement with the experimental data throughout the velocity regime considered. This suggests that the impact parameter plays a crucial role when inner-shell excitation is concerned. Moreover, we conduct a quantitative analysis of the effect of the impact parameter on the electronic excitation in specific bands. An important conclusion drawn is that reducing the impact parameter significantly increases the intensity of the inner-shell excitation, especially for regimes around and above the stopping maximum, and it would also shift the excitation threshold to a lower velocity.

10.1103/physreva.109.012818

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Electronic Properties of Defects Induced by H Irradiation in Tantalum Phosphide

Chinese Physics Letters (2017)

Wei Cheng Yanlong Fu Minju Ying Feng-Shou Zhang

Tantalum phosphide (TaP) is predicted to be a kind of topological semimetal. Several defects of TaP induced by H irradiation are studied by the density functional theory. Electronic dispersion curves and density of states of these defects are reported. Various defects have different impacts on the topological properties. Weyl point positions are not affected by most defects. The H atom can tune the Fermi level as an interstitial. The defect of substitutional H on P site does not affect the topological properties. P and Ta vacancies of concentration 1/64 as well as the defect of substitutional H on Ta site destruct part of the Weyl points.

Phosphide

10.1088/0256-307x/34/12/127101

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A Novel Algorithm to the Transient State of Nuclear Matter with Isospin Asymmetry, Thermal Excitation, and Compression

Progress of Theoretical Physics Supplement (2000)

Feng-Shou Zhang Lie-Wen Chen Zhao-Yu Ming Zhiyuan Zhu

A dynamical algorithm which includes the isospin degrees of freedom in heavy ion collisions is introduced. A description of this algorithm is given in detail.

Transient (computer programming)

10.1143/ptps.138.32

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Production of heavy neutron-rich nuclei in transfer reactions within the dinuclear system model

Journal of Physics G Nuclear and Particle Physics (2015)

Long Zhu Zhao-Qing Feng Feng-Shou Zhang

The dynamics of nucleon transfer processes in heavy-ion collisions is investigated within the dinuclear system model. The production cross sections of nuclei in the reactions 136Xe+208Pb and 238U+248Cm are calculated, and the calculations are in good agreement with the experimental data. The transfer cross sections for the 58Ni+208Pb reaction are calculated and compared with the experimental data. We predict the production cross sections of neutron-rich nuclei Eu, Tb, Ho, and based on the reaction 176Yb+238U. It can be seen that the production cross sections of the neutron-rich nuclei 165Eu, 169Tb, 173Ho, and 181Yb are 2.84 μb, 6.90 μb, 46.24 μb, and 53.61 μb, respectively, which could be synthesized in experiment.

10.1088/0954-3899/42/8/085102

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Citations (45)

Study of the dynamical potential barriers in heavy ion collisions

Nuclear Physics A (2013)

Long Zhu Jun Su Wen-Jie Xie Feng-Shou Zhang

10.1016/j.nuclphysa.2013.07.003

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Production of neutron-rich nuclei with Z=90–95 by multinucleon transfer reactions with a Cm248 target

Physical review. C (2024)

Xiaoye Zhang Gen Zhang Zilong Wang Rui Zhu Y. S. Zhang

Based on the dinuclear system model, the calculated cross sections in the multinucleon transfer reactions $^{136}\mathrm{Xe}+^{249}\mathrm{Cf}$ and $^{136}\mathrm{Xe}+^{248}\mathrm{Cm}$ agree well with experimental data. In the $^{112}\mathrm{Cd}$, $^{124}\mathrm{Sn}$, $^{130}\mathrm{Sn}+^{248}\mathrm{Cm}$ reactions, we find the higher $N/Z$ ratio of the projectile, the easier it is for the target to pick up neutrons due to the lower $\mathrm{\ensuremath{\Delta}}U$ value. The effect of the incident energy in the $^{130}\mathrm{Sn}+^{248}\mathrm{Cm}$ reaction is studied, and the cross section of neutron-rich nuclei is not sensitive to the incident energy. The total kinetic energy increases with the increasing impact parameter, due to the transition from deep inelastic collision to quasielastic scattering. The angular distributions of six new isotopes produced in the $^{130}\mathrm{Sn}+^{248}\mathrm{Cm}$ reaction are predicted. It is found that the angular distribution moves towards a larger angle as the incident energy increases. 46 unknown neutron-rich isotopes with $Z=90\text{--}95$ in the reaction $^{130}\mathrm{Sn}+^{248}\mathrm{Cm}$ at ${E}_{\text{c.m.}}$= 1.1 ${V}_{\text{C}}$ are predicted with cross sections larger than 1 pb.

10.1103/physrevc.110.054607

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Stable and deterministic quantum key distribution based on differential phase shift

arXiv (Cornell University) (2008)

Bao‐Kui Zhao Yu‐Bo Sheng Fu‐Guo Deng Feng-Shou Zhang Hong-Yu Zhou

We present a stable and deterministic quantum key distribution (QKD) system based on differential phase shift. With three cascaded Mach-Zehnder interferometers with different arm-length differences for creating key, its key creation efficiency can be improved to be 7/8, more than other systems. Any birefringence effects and polarization-dependent losses in the long-distance fiber are automatically compensated with a Faraday mirror. Added an eavesdropping check, this system is more secure than some other phase-coding-based QKD systems. Moreover, the classical information exchanged is reduces largely and the modulation of phase shifts is simplified. All these features make this QKD system more convenient than others in a practical application.

Quantum key distribution

Differential phase

10.48550/arxiv.0801.0259

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Isospin effects of projectile fragmentation in a Boltzmann-Langevin approach *

Chinese Physics C (2021)

B. Li Na Tang Feng-Shou Zhang

Abstract The isospin effects of projectile fragmentation at intermediate energies are investigated using an isospin-dependent Boltzmann-Langevin model. The collisions of mass-symmetric reactions including 58 Fe, 58 Ni + 58 Fe, and 58 Ni at intermediate energies, in the 30 to 100 MeV/A range, are studied for different symmetry energies. Yield ratios of the isotopic, isobaric, and isotonic pairs of fragments from the intermediate-mass region using three symmetry energies are extracted as functions of the N/Z ratio of the composite systems in the entrance channel and the incident energies. It is found that the yield ratios are sensitive to symmetry energies, especially for neutron-rich systems, and the calculations using soft symmetry energy are closer to the experimental data. The isospin effect is stronger for the soft symmetry energy, owing to the competition of the repulsive Coulomb force and the symmetry energy attractive force on the proton. For the first time, the splits are presented, revealing a transition from the isospin equilibrium at lower energies to translucency at intermediate energies. The results show a degree of transparency in that intermediate mass fragments undergo a transition from dependence on the composite systems in the entrance channel to reliance on the projectile and target nuclei.

Isobaric process

10.1088/1674-1137/ac009a

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Citations (4)