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Relativistic Continuum Random Phase Approximation and Applications I. Formalism

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【Author】 YANG Ding CAO Li-Gang MA Zhong-Yu 1 China Institute of Atomic Energy, P.O.Box 275(18), Beijing 102413, China 2 Communication University of China, Beijing 100024, China 3 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Collision, Lanzhou 730000, China 4 Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China

【机构】 China Institute of Atomic Energy； Communication University of China； Center of Theoretical Nuclear Physics, National Laboratory of Heavy Collision； Institute of Modern Physics, Chinese Academy of Science；

【摘要】 <正> A fully consistent relativistic continuum random phase approximation (RCRPA) is constructed in termsof the Green’s function technique. In this method the contribution of the continuum spectrum to nuclear excitations istreated exactly by the single particle Green’s function, which includes also the negative states in the Dirac sea in theno sea approximation. The theoretical formalism of RCRPA and numerical details are presented. The single particleGreen’s function is calculated numerically by a proper product of regular and irregular solutions of the Dirac equation.The numerical details and the formalism of RCRPA in the momentum representation are presented.更多还原

【Abstract】 A fully consistent relativistic continuum random phase approximation (RCRPA) is constructed in terms of the Green’s function technique. In this method the contribution of the continuum spectrum to nuclear excitations is treated exactly by the single particle Green’s function, which includes also the negative states in the Dirac sea in the no sea approximation. The theoretical formalism of RCRPA and numerical details are presented. The single particle Green’s function is calculated numerically by a proper product of regular and irregular solutions of the Dirac equation. The numerical details and the formalism of RCRPA in the momentum representation are presented.更多还原

【关键词】 Hartree-Fock and random-phase approximations； giant resonances； nuclear matter；
【Key words】 Hartree-Fock and random-phase approximations； giant resonances； nuclear matter；

【基金】 Supported by the National Natural Science Foundation of China under Grant Nos. 10875150, 10775183, 10535010;Major State Basic Research Development Programme of China under Grant No. 2007CB815000

【文献出处】 Communications in Theoretical Physics ,理论物理通讯(英文版) , 编辑部邮箱 ,2010年04期

【分类号】O412.1
【被引频次】2
【下载频次】3

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