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Traveling－Wave　Electrooptical　Modulator　on　Polymeric　Film　with　Reversal　Poling　Structure

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Chinese Journal of Lasers 1994年第1期B3卷 57-61页

作者： ZHOU Yi CHEN Yixin(department of Applied physics, shanghai jiao tong university, shanghai200030, china)sun Shiping(department of Electronical Engineering ,shanghai jiao tong university , shanghai 200052, china) shanghai jiaotong Univ Shanghai China

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关键词： reversal poling Electrooptical effect modulator

Coexistence of normal, super-, and hyper-deformation in nuclei: A study with angular momentum projection method

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Chinese Science Bulletin 2009年第3期54卷 358-363页

作者： sun yang1,2, ZHANG JingYe3, LONG GuiLu4,5 & WU ChengLi6,7 1 department of physics, shanghai jiao tong university, shanghai 200240, china 2 Joint Institute for Nuclear Astrophysics, university of Notre Dame, Notre Dame, Indiana 46556, USA 3 department of physics and Astronomy, university of Tennessee, Knoxville, Tennessee 37996, USA 4 department of physics, Tsinghua university, Beijing 100084, china 5 Center of Nuclear Theory, Lanzhou National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, china 6 department of physics, Xiamen university, Xiamen 361005, china 7 department of physics, Chung Yuan Christian university, Chung-Li, Taiwan 32023, china department of physics Shanghai Jiao Tong University Shanghai 200240 China Joint Institute for Nuclear Astrophysics University of Notre Dame Notre Dame Indiana 46556 USA department of physics and Astronomy University of Tennessee Knoxville Tennessee 37996 USA department of physics Tsinghua University Beijing 100084 China Center of Nuclear Theory Lanzhou National Laboratory of Heavy Ion Accelerator Lanzhou 730000 China department of physics Xiamen University Xiamen 361005 China department of physics Chung Yuan Christian University Chung-Li Taiwan 32023 China

Angular-momentum-projected energy surface calculations for A ≈ 110 nuclei indicate three distinct energy minima occurring at different angular-momenta. These correspond to normal, super-, and hy- per-deformed shapes coexisting in one nucleus. 110Pd is studied in detail, with a quantitative prediction on super- and hyper-deformed spectra by the Projected Shell Model calculation. It is found that several other neighboring nuclei in the A-110 mass region, with the neutron number around 64, also exhibit clear super- and hyper-deformation minima in the projected calculation.

关键词：原子核光谱角动量能量

Spin-conserved PES Calculation:First Application on 178Hf

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Spin-conserved PES Calculation:First Application on 178Hf

Exploring hidden-charm and hidden-strange hexaquark states from lattice QCD

第十三届全国核结构研讨会暨第九次全国“核结构与量子力学”专题讨论会

作者： C.F.jiao~1 F.R.Xu~(1 1)) Y.sun~2 1(School of physics,and State Key Laboratory of Nuclear physics and Technology,Peking university,Beijing 100871,china) 2(department of physics,shanghai jiao tong university,shanghai 200240,People's Republic of china)

A spin-conserved potential-energy-surface（PES） calculation,which takes angular momentum restoration and multi-quasiparticle excitations into account,is developed by using the concepts of the macroscopic-microscopic shell correction and the projected shell model（PSM）.With this method,it may become possible to modify the excitation spectra which are influenced by shape-softness of *** our first example, this method is performed to study the multi-quasiparticle and collective excitations of Hf,which are in good agreement with the existing experimental *** addition,the conflict of the dominant structure of 6 band between experimental results and previous PSM calculations is clarified.

关键词： Nuclear structure Potential-energy surface Projected shell model

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Science china(physics,Mechanics & Astronomy) 2024年第1期67卷 30-37页

作者： Hang Liu Jinchen He Liuming Liu Peng sun Wei Wang Yi-Bo yang Qi-An Zhang INPAC Key Laboratory for Particle Astrophysics and Cosmology(MOE)Shanghai Key Laboratory for Particle Physics and CosmologySchool of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Maryland Center for Fundamental physics Department of PhysicsUniversity of MarylandCollege ParkMaryland 20742USA Institute of Modern physics Chinese Academy of SciencesLanzhou 730000China university of Chinese Academy of Sciences Beijing 100049China department of physics and Institute of Theoretical physics Nanjing Normal UniversityNanjing 210023China Southern Center for Nuclear-Science Theory(SCNT) Institute of Modern PhysicsChinese Academy of SciencesHuizhou 516000China CAS Key Laboratory of Theoretical physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China School of Fundamental physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUCASHangzhou 310024China International Centre for Theoretical physics Asia-Pacific Beijing 100049/Hangzhou 310024China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China School of physics Beihang UniversityBeijing 102206China

Based on five different ensembles of newly generated(2+1)-flavor configurations with pion mass of approximately mπ■(140-310)MeV,we present a lattice analysis of hidden-charm and hidden-strange hexaquarks with the quark content■.The correlation matrices of two types of operators with JPC=0++,0-+,1++and 1--are simulated to extract the masses of the hexaquark candidates,which are subsequently extrapolated to the physical pion mass and continuum *** results indicate that ground state masses are below the■threshold and provide a characteristic signal for the experimental discovery of hexaquark candidates,which may enrich the versatile structure of multiquarks;moreover,it is an indispensable step to decipher the nonperturbative nature of the fundamental interactions of quarks and gluons.

关键词： quantum chromodynamics lattice QCD multiquark states

Growth of ablative Rayleigh-Taylor instability induced by time-varying heat-flux perturbation

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Matter and Radiation at Extremes 2024年第1期9卷 85-93页

作者： yang Liu De-Hua Zhang Jing-Fei Xin Yudong Pu Jun Li Tao Tao Dejun sun Rui Yan Jian Zheng department of Modern Mechanics University of Science and Technology of ChinaHefei 230026China Deep Space Exploration Laboratory Hefei 230026China Laser Fusion Research Center China Academy of Engineering PhysicsMianyang 621900China Institute of Applied physics and Computational Mathematics Beijing 100094China department of Plasma physics and Fusion Engineering University of Science and Technology of ChinaHefeiAnhui 230026China Collaborative Innovation Center of IFSA(CICIFSA) Shanghai Jiao Tong UniversityShanghai 200240China CAS Center for Excellence in Ultra-intense Laser Science Shanghai 201800China

The evolution of ablative Rayleigh–Taylor instability(ARTI)induced by single-mode stationary and time-varying perturbations in heat flux is studied numerically in two *** with the stationary case,time-varying heat-flux perturbation mitigates ARTI growth because of the enhanced thermal smoothing induced by the wave-like traveling heat flux.A resonance is found to form when the phase velocity of the heat-flux perturbation matches the average sound speed in the ablation *** the resonant regime,the coherent density and temperature fluctuations enhance the electron thermal conduction in the ablation region and lead to larger ablation pressure and effective acceleration,which consequently yield higher linear growth rate and saturated bubble *** enhanced effective acceleration offers increased implosion velocity but can also compromise the integrity of inertial confinement fusion shells by causing faster ARTI growth.

关键词： perturbation stationary acceleration

Establishing HI mass vs. stellar mass and halo mass scaling relations using an abundance matching method

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Science china(physics,Mechanics & Astronomy) 2024年第11期67卷 149-163页

作者： Yi Lu Xiaohu yang Chengze Liu Haojie Xu Antonios Katsianis Hong Guo Xiaoju Xu Yizhou Gu Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao Lee Institute and Shanghai Key Laboratory for Particle Physics and CosmologyShanghai Jiao Tong UniversityShanghai 200240China department of Astronomy School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China School of physics and Astronomy Sun Yat-sen UniversityZhuhai CampusZhuhai 519082China

We combined data from the Sloan Digital Sky Survey(SDSS) and the Arecibo Legacy Fast ALFA Survey(ALFALFA) to establish the HI mass vs. stellar mass and halo mass scaling relations using an abundance matching method that is free of the Malmquist bias. To enable abundance matching, a cross-match between the SDSS DR7 galaxy group sample and the ALFALFA HI sources provides a catalog of 16520 HI-galaxy pairs within 14270 galaxy groups(halos). By applying the observational completeness reductions for both optical and HI observations, we used the remaining 8180 ALFALFA matched sources to construct the model constraints. Taking into account the dependence of HI mass on both the galaxy and group properties, we establish two sets of scaling relations: one with a combination of stellar mass,(g-r) color and halo mass, and the other with stellar mass,specific star-formation rate(sSFR), and halo mass. We demonstrate that our models can reproduce the HI mass component as both stellar mass and halo mass. Additional tests showed that the conditional HI mass distributions as a function of the cosmic web type and the satellite fractions were well recovered.

关键词： galaxy groups neutral hydrogen halos statistical

Improving constraint onΩ_(m)from SDSS using marked correlation functions

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Science china(physics,Mechanics & Astronomy) 2024年第8期67卷 207-224页

作者： Limin Lai Jiacheng Ding Xiaolin Luo Yizhao yang Zihan Wang Keshi Liu Guanfu Liu Xin Wang Yi Zheng Zhaoyu Li Le Zhang Xiao-Dong Li School of physics and Astronomy Sun Yat-sen University Zhuhai CampusZhuhai 519082China department of Astronomy Shanghai Jiao Tong UniversityShanghai 200240China department of Astronomy Tsinghua UniversityBeijing 100084China CSST Science Center for the Guangdong-Hong Kong-Macao Greater Bay Area SYSUZhuhai 519082China Peng Cheng Laboratory Shenzhen 518000China

Large-scale structure(LSS)surveys will increasingly provide stringent constraints on our cosmological ***,the density-marked correlation function(MCF)has been introduced,offering an easily computable density-correlation *** have demonstrated that MCFs offer additional,independent constraints on cosmological models beyond the standard two-point correlation(2PCF).In this study,we apply MCFs for the first time to SDSS CMASS data,aiming to investigate the statistical information regarding clustering and anisotropy properties in the Universe and assess the performance of various weighting schemes in MCFs,and finally obtain constraints onΩ_(m).Upon analyzing the CMASS data,we observe that,by combining different weights(α=[-0.2,0,0.2,0.6]),the MCFs provide a tight and independent constraint on the cosmological parameterΩ_(m),yieldingΩ_(m)=0.293±0.006 at the 1σlevel,which represents a significant reduction in the statistical error by a factor of 3.4 compared to that from *** constraint is consistent with recent findings from the small-scale clustering of BOSS galaxies(Zhai et ***.J.948,99(2023))within the 1σ***,we also find that our estimate is lower than the Planck measurements by about 2.6σ,indicating the potential presence of new physics beyond the standard cosmological model if all the systematics are fully *** method outlined in this study can be extended to other surveys and datasets,allowing for the constraint of other cosmological ***,it serves as a valuable tool for forthcoming emulator analysis on the Chinese Space Station Telescope(CSST).

关键词： large scale structure of universe dark energy cosmological parameters marked weighted correlation function

Description of rotational properties of the superheavy nucleus ^(256,258,260)Rf by projected shell model

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Chinese Science Bulletin 2014年第29期59卷 3853-3857页

作者： Zhiyi Zhou Yanxin Liu yingchun yang Fangqi Chen yang sun department of physics and Astronomy Shanghai Jiao Tong University School of Science Huzhou Teachers College shanghai jiao tong university Press china Institute of Atomic Energy

Band structure of the Z=104 nucleus256Rf has been a recent research focus in nuclear *** performed projected shell model calculations for this and some other neighboring Rf ***,we studied rotational properties of these nuclei and showed that variations in dynamic moment of inertia were sensitive to single-particle structures,which may be useful information for locating the anticipated island of *** transition properties were also calculated,and measurable quantities were predicted for further experimental test.

关键词：投影壳模型超重核属性旋转转动性能能带结构粒子结构电磁转换

Abnormal signature inversion and gigantic alignments in doubly-odd 126Ⅰ

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Abnormal signature inversion and gigantic alignments in doub...