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Non-Gaussian Fluctuations and Non-Markovian Effects in the Nuclear Fusion Process: Langevin Dynamics Emerging from Quantum Molecular Dynamics Simulations
Wen, K; Sakata, F; Li, ZX; Wu, XZ; Zhang, YX; Zhou, SG; Wen, K (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2013
发表期刊PHYSICAL REVIEW LETTERS
ISSN0031-9007
卷号111期号:1页码:12501
摘要Macroscopic parameters as well as precise information on the random force characterizing the Langevin-type description of the nuclear fusion process around the Coulomb barrier are extracted from the microscopic dynamics of individual nucleons by exploiting the numerical simulation of the improved quantum molecular dynamics. It turns out that the dissipation dynamics of the relative motion between two fusing nuclei is caused by a non-Gaussian distribution of the random force. We find that the friction coefficient as well as the time correlation function of the random force takes particularly large values in a region a little bit inside of the Coulomb barrier. A clear non-Markovian effect is observed in the time correlation function of the random force. It is further shown that an emergent dynamics of the fusion process can be described by the generalized Langevin equation with memory effects by appropriately incorporating the microscopic information of individual nucleons through the random force and its time correlation function.
部门归属[Wen, Kai; Sakata, Fumihiko; Zhou, Shan-Gui] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China; [Sakata, Fumihiko] Ibaraki Univ, Grad Sch Sci & Technol, Inst Appl Beam Sci, Mito, Ibaraki 3108512, Japan; [Li, Zhu-Xia; Wu, Xi-Zhen; Zhang, Ying-Xun] China Inst Atom Energy, Beijing 102413, Peoples R China; [Zhou, Shan-Gui] Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China
关键词Heavy-ion Collisions Superheavy Nuclei Dinuclear System Motion Neck
学科领域Physics
资助者Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01]
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收录类别SCI
语种英语
资助者Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) [2011T1J27]; MOST of China [2013CB834400]; NSF of China [11005155, 11075215, 11121403, 11120101005, 11275052, 11275248]; CAS [KJCX2-EW-N01]
WOS记录号WOS:000321209200004
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15328
专题理论物理所SCI论文
通讯作者Wen, K (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式
GB/T 7714
Wen, K,Sakata, F,Li, ZX,et al. Non-Gaussian Fluctuations and Non-Markovian Effects in the Nuclear Fusion Process: Langevin Dynamics Emerging from Quantum Molecular Dynamics Simulations[J]. PHYSICAL REVIEW LETTERS,2013,111(1):12501.
APA Wen, K.,Sakata, F.,Li, ZX.,Wu, XZ.,Zhang, YX.,...&Wen, K .(2013).Non-Gaussian Fluctuations and Non-Markovian Effects in the Nuclear Fusion Process: Langevin Dynamics Emerging from Quantum Molecular Dynamics Simulations.PHYSICAL REVIEW LETTERS,111(1),12501.
MLA Wen, K,et al."Non-Gaussian Fluctuations and Non-Markovian Effects in the Nuclear Fusion Process: Langevin Dynamics Emerging from Quantum Molecular Dynamics Simulations".PHYSICAL REVIEW LETTERS 111.1(2013):12501.
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