A study of particle number fluctuation under BCS theory

被引:0
作者
BinGang Ding
PingZhi Ning
DaLi Zhang
DingHui Lu
机构
[1] Huzhou Teacher’s College,College of Science
[2] Nankai University,Department of Physics
[3] Zhejiang University,Department of Physics
来源
Science in China Series G: Physics, Mechanics and Astronomy | 2007年 / 50卷
关键词
relativistic mean-field model; shell effects; BCS theory; particle number fluctuations; odd-even effect;
D O I
暂无
中图分类号
学科分类号
摘要
Particle number fluctuations in BCS theory are studied with the relativistic mean-field theory and the shell effects of particle number fluctuations are first discovered. By analyzing the relative errors of the particle number fluctuations, we find that the particle number fluctuations are relevant with the odd-even character. We later apply this method to the examination of the new shell structure, showing that N = 184 for the neutron is indeed a new closed shell.
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页码:231 / 239
页数:8
相关论文
共 39 条
[1]  
Bohr A.(1958)Possible analogy between the excitation spectra of nuclei and those of superconducting metallic state Phys Rev 110 936-534
[2]  
Mottelson B. R.(2000)Conformal field theory and the exact solution of the BCS hamiltonian Nucl Phys B572 517-179
[3]  
Pienes D.(1990)Relativistic mean field theory for finite nuclei Ann Phys 198 132-830
[4]  
Gambhir Y. K.(2002)Description of the new nuclide Db and its α-decay chain in relativistic mean field theory HEP & NP 26 823-97
[5]  
Ring P.(1997)Compute program for the relativistic mean field description of the ground state properties of even-even axially deformed nuclei Comput Phys Commun 105 77-135
[6]  
Thimet A.(2005)Magic numbers for superheavy nuclei in relativistic continuum hartree-bogoilyubov theory Nucl Phys A 753 106-617
[7]  
Long W. H.(2004)Proton rich nuclei at and beyond the proton drip line in the relativistic mean field theory Prog Theor Phys 112 603-602
[8]  
Meng J.(2003)Study for the relativistic mean field of A—50 isotopes HEP & NP (in Chinese) 27 598-711
[9]  
Zhou S. G.(2003)Systematic calculation on the ground state properties of odd-even superheary nuclei with relativistic mean fiend theory HEP & NP (in Chinese) 27 707-571
[10]  
Ring P.(2004)β-steady nuclear matter Sci China Ser G-Phys Mech Astron (in Chinese) 34 560-676