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三体里德堡超级原子的关联动力学研究
里德堡原子 超级原子 偶极阻塞 量子纠缠
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2022/4/1
因为寿命长，并且原子间相互作用容易操控，所以里德堡原子在量子信息与量子光学领域具有极大的吸引力。特别地，偶极阻塞效应成为执行很多量子信息处理任务的物理资源。本文基于严格的偶极阻塞效应，将捕获在三个磁光阱中的二能级里德堡原子系综看作超级原子，在此基础上研究原子数目可调控的三体里德堡超级原子的同相和反相动力学行为，同时实现W态和两种最大纠缠态的制备。本工作在量子操控和量子信息处理方面具有潜在的应用前景...
HI-13串列加速器核物理应用研究发展现状和展望
核物理应用研究 HI-13串列加速器 超导直线加速器 多粒子可变能量回旋加速器
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2021/1/12
HI-13串列加速器建设开始，核物理应用研究即为其一主要研究和发展方向。过去30多年，从设备和装置建设开始，核物理应用研究得到很大发展，取得了一批优秀的研究成果。本文主要介绍HI-13串列加速器的航天电子元器件抗辐射加固、辐射生物效应、加速器质谱、核孔膜和防伪标识、在线和离线核效应等核物理应用研究发展现状，展望了依托在建的预期2021年底投入运行的HI-13串列加速器-超导直线加速器和多粒子可变能...
冷战结束后，核扩散问题成为全球治理的重要议题。在中东地区，以色列、伊拉克、利比亚、叙利亚、沙特和伊朗等国家纷纷提出自己的核计划，使中东地区建立“无核区”的目标面临挑战。中国积极参与了中东核扩散治理，尤其以伊朗核问题为抓手，构建新型大国关系，参与中东地区治理。本文从动因分析、路径选择和机制运用三个层面探讨新时期中国参与中东核扩散治理的理论与实践，并以中国参与伊朗核问题治理为例，考察上述三个层面的具体...
朝鲜半岛核危机的评论
朝鲜半岛 核 安全
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2013/8/12
中国的确在朝鲜半岛上有重大利益，主要是安全利益。外部强权经常利用朝鲜半岛做跳板，侵略中国，包围和威胁中国。帝国主义势力干涉朝鲜半岛，目的并不是朝鲜半岛，而是意在中国。
Jet Quenching in Non-Conformal Holography
Non-Conformal Holography Jet Quenching
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2011/7/21
We use our non-conformal holographic bottom-up model for QCD described in 1012.0116 to further study the effect of the QCD trace anomaly on the energy loss of both light and heavy quarks in a strongly...
$Z_b(10610)^\pm$ and $Z_b(10650)^\pm$ as the $B^*\bar{B}$ and $B^*\bar{B}^{*}$ molecular states
$Z_b(10610)^\pm$ $Z_b(10650)^\pm$
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2011/7/21
In the framework of the one-boson-exchange model, we have studied the interaction of the $B^*\bar{B}$ and $B^*\bar{B}^{*}$ system.
A Fast Numerical Scheme for Causal Relativistic Hydrodynamics with Dissipation
Relativistic Hydrodynamics
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2011/7/21
In this paper, we develop a stable and fast numerical scheme for relativistic dissipative hydrodynamics based on Israel-Stewart theory.
Non-Perturbative Prediction of the Ferromagnetic Transition in Repulsive Fermi Gases
Fermi Gases Ferromagnetic Transition
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2011/7/21
It is generally believed that a dilute spin-1/2 Fermi gas with repulsive interactions can undergo a ferromagnetic phase transition to a spin-polarized state at a critical gas parameter $(k_{\text F}a)...
Single Spin Asymmetries in Charged Pion Production from Semi-Inclusive Deep Inelastic Scattering on a Transversely Polarized $^3$He Target
Transversely Polarized $^3$He Target Charged Pion Production
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2011/7/21
We report the first measurement of target single spin asymmetries in the semi-inclusive $^3{He}(e,e'\pi^\pm)X$ reaction on a transversely polarized target. The experiment, conducted at Jefferson Lab u...
Turbulent fluctuations around Bjorken flow
Bjorken flow Turbulent fluctuations
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2011/7/20
We study the evolution of local event-by-event deviations from smooth average fluid dynamic fields, as they can arise in heavy ion collisions from the propagation of fluctuating initial conditions.
Effect of Coulomb Forces on the Position of the Pole in the Scattering Amplitude and on Its Residue
Coulomb Forces Scattering Amplitude on Its Residue
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2011/7/20
Explicit expressions of the vertex constant for the decay of a nucleus into two charged particles for an arbitrary orbital momentum $l$ are derived for the standard expansion of the effective-range fu...
Identity Method for Particle Number Fluctuations and Correlations
hadron chemical fluctuations incomplete particle identification identity method
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2011/7/20
An incomplete particle identification distorts the observed event-by-event fluctuations of the hadron chemical composition in nucleus-nucleus collisions. A new experimental technique called the {\em i...
Microscopic Calculation of Heavy-Ion Potentials Based on TDHF
Heavy-Ion Potentials Based TDHF
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2011/7/20
We discuss the implementation and results of a recently developed microscopic method for calculating ion-ion interaction potentials and fusion cross-sections. The method uses the TDHF evolution to obt...
Linear chain structure of four-$α$ clusters in $^{16}$O
four-$α$ Linear chain structure
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2011/7/20
We investigate the linear-chain configurations of four-$\alpha$ clusters in $^{16}$O using a Skyrme cranked Hartree-Fock method and discuss the relationship between the stability of such states and an...
Four-nucleon scattering with a correlated Gaussian basis method
Four-nucleon scattering correlated Gaussian basis method
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2011/7/20
Elastic-scattering phase shifts for four-nucleon systems are studied in an $ab$-$initio$ type cluster model in order to clarify the role of the tensor force and to investigate cluster distortions in l...