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作品数:493被引量:1910H指数:17
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Fragmentation dynamics of electron-impact double ionization of helium
《Chinese Physics B》2023年第6期9-15,共7页刘士炜 叶地发 刘杰 
Project supported by the National Natural Science Foundation of China (Grant Nos. 12174034, 12047510, and 11822401);NSAF (Grant Nos. U1930402 and U1930403)。
We study the double ionization dynamics of a helium atom impacted by electrons with full-dimensional classical trajectory Monte Carlo simulation. The excess energy is chosen to cover a wide range of values from 5 e V ...
关键词:double ionization classical trajectory Monte Carlo simulation Wannier threshold law ERGODICITY 
Effect of weak randomness flaws on security evaluation of practical quantum key distribution with distinguishable decoy states
《Chinese Physics B》2023年第5期254-260,共7页周雨 李宏伟 周淳 汪洋 陆宜飞 江木生 张晓旭 鲍皖苏 
the National Key Research and Development Program of China(Grant No.2020YFA0309702);NSAF(Grant No.U2130205);the National Natural Science Foundation of China(Grant Nos.62101597,61605248,and 61505261);the China Postdoctoral Science Foundation(Grant No.2021M691536);the Natural Science Foundation of Henan(Grant Nos.202300410534 and 202300410532);the Anhui Initiative in Quantum Information Technologies。
Quantum key distribution provides an unconditional secure key sharing method in theory,but the imperfect factors of practical devices will bring security vulnerabilities.In this paper,we characterize the imperfections...
关键词:weak randomness quantum key distribution distinguishable decoy state 
Anisotropy of 2H-NbSe_(2)in the superconducting and charge density wave states
《Chinese Physics B》2023年第4期593-597,共5页张驰 乔山 肖宏 胡涛 
Project supported by the National Natural Science Foundation of China(Grant Nos.11574338 and 12074038);NSAF(Grant No.U1530402)。
Anisotropy is an important feature of layered materials,and a large anisotropy is usually related to the two-dimensional charac teristics.We investigated the anisotropy of the layered transition metal dicalcogenide 2H...
关键词:ANISOTROPY SUPERCONDUCTIVITY charge density wave transition metal dicalcogenides 
A novel monoclinic phase and electrically tunable magnetism of van der Waals layered magnet CrTe2
《Chinese Physics B》2023年第2期436-441,共6页任启迪 赖康 陈家浩 余晓翔 戴佳钰 
supported by the National Key Research and Development Program of China (Grant No. 2017YFA0403200);the National Natural Science Foundation of China (Grant No. 11774429);the NSAF (Grant No. U1830206);the Science and Technology Innovation Program of Hunan Province, China (Grant No. 2021RC4026)。
Exploring the novel structural phase of van der Waals(vdW) magnets would promote the development of spintronics.Here, through first-principles calculations, we report a novel monoclinic structure of vdW layered 1T-CrT...
关键词:van der Waals magnets magnetic transition hole doping 
An overview of quantum error mitigation formulas
《Chinese Physics B》2022年第9期1-12,共12页Dayue Qin Xiaosi Xu Ying Li 
This work is supported by the National Natural Science Foundation of China(Grant Nos.11875050 and 12088101);NSAF(Grant No.U1930403).
Minimizing the effect of noise is essential for quantum computers.The conventional method to protect qubits against noise is through quantum error correction.However,for current quantum hardware in the so-called noisy...
关键词:quantum error mitigation quantum computing quantum error correction noisy intermediate-scale quantum 
Post-solitons and electron vortices generated by femtosecond intense laser interacting with uniform near-critical-density plasmas
《Chinese Physics B》2022年第4期486-492,共7页Dong-Ning Yue Min Chen Yao Zhao Pan-Fei Geng Xiao-Hui Yuan Quan-Li Dong Zheng-Ming Sheng Jie Zhang 
Project supported by the National Natural Science Foundation of China(Grant Nos.11991074,11774227,12005287,and 12135009);NSAF of China(Grant No.U1930111);the Natural Science Foundation of Shandong Province,China(Grant No.ZR2019ZD44);the Strategic Priority Research Program of Chinese Academy of Sciences(Grant Nos.XDA25000000 and XDA25050800)。
Generation of nonlinear structures,such as stimulated Raman side scattering waves,post-solitons and electron vortices,during ultra-short intense laser pulse transportation in near-critical-density(NCD)plasmas is studi...
关键词:stimulated Raman side scattering near-critical-density plasmas electron vortices post-solitons 
First-principles study of stability of point defects and their effects on electronic properties of GaAs/AlGaAs superlattice
《Chinese Physics B》2022年第3期434-443,共10页Shan Feng Ming Jiang Qi-Hang Qiu Xiang Hua Peng Hai-Yan Xiao Zi-Jiang Liu Xiao-Tao Zu Liang Qiao 
Project supported by the NSAF Joint Foundation of China (Grant No. U1930120);the Key Natural Science Foundation of Gansu Province, China (Grant No. 20JR5RA211);the National Natural Science Foundation of China (Grant No. 11774044)。
When the GaAs/AlGaAs superlattice-based devices are used under irradiation environments, point defects may be created and ultimately deteriorate their electronic and transport properties. Thus, understanding the prope...
关键词:first-principles calculations GaAs/Al_(0.5)Ga_(0.5)As superlattice point defects electronic properties 
Quantitative structure-plasticity relationship in metallic glass:A machine learning study
《Chinese Physics B》2021年第5期20-25,共6页Yicheng Wu Bin Xu Yitao Sun Pengfei Guan 
the Science Challenge Project(Grant No.TZ2018004);the NSAF Joint Program(Grant No.U1930402);the National Natural Science Foundation of China(Grant No.51801230);the National Key Research and Development Program of China(Grant No.2018YFA0703601).
The lack of the long-range order in the atomic structure challenges the identification of the structural defects,akin to dislocations in crystals,which are responsible for predicting plastic events and mechanical fail...
关键词:metallic glass STRUCTURE PLASTICITY machine learning 
Anisotropy of Ca0.73La0.27(Fe0.96Co0.04)As2 studied by torque magnetometry
《Chinese Physics B》2020年第9期506-510,共5页Ya-Lei Huang Run Yang Pei-Gang Li Hong Xiao 
Project supported by NSAF,China(Grant No.U1530402);P.G.Li acknowledges the support of the National Natural Science Foundation of China(Grant No.51572241).
Torque measurements were performed on single crystal samples of Ca0.73La0.27(Fe0.96Co0.04)As2 in both the normal and superconducting states.Contributions to the torque signal from the paramagnetism and the vortex latt...
关键词:TORQUE anisotropy parameter SUPERCONDUCTIVITY 
Role of Bloch oscillation in high-order harmonic generation from periodic structure被引量:1
《Chinese Physics B》2019年第11期60-66,共7页Lu Liu Jing Zhao Jian-Min Yuan Zeng-Xiu Zhao 
Project supported by the NSAF,China(Grant No.U1730449);the National Natural Science Foundation of China(Grant Nos.11904341,11774322,91850201,and 11874066)
The high-order harmonic generation from a model solid structure driven by an intense laser pulse is investigated using the semiconductor Bloch equations(SBEs). The main features of harmonic spectrum from SBEs agree we...
关键词:high-order harmonic generation attosecond pulse semiconductor Bloch equations time-dependent Schrodinger equation 
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