Energy Level Statistics in Particle—Rotor Model
ZHOUXian－Rong;MENGJie;等
【期刊名称】《理论物理通讯：英文版》 【年(卷),期】2002(037)005
【摘要】Energy level statistics of a system consisting of six particles interacting by delta force in a two-j model coupled with a deformed core is studied in particle-rotor model.For single-j shell (i13/2) and two-j shell (g7/2+d5/2) the exact energies for our statistical analysis are obtained from a full diagonalization of the Hamiltonian,whilt in two-j case (i13/2+g9/2) the configuration truncation is used.The nearest-neighbor distribution of energy levels and spectral rigidity are studied as the function of spin.The results of single-j shell are compared with those in two-j case.It is showed that the system becomes more regular when single-j space (i13/2) is replaced by two-j shell (g7/2+d5/2) although the basis size of the configuration space is unchanged.The degree of chaoticity of the system,however,changes slightly when configuration space is enlarged by extending single-j shell (i13/2) to two-j shell (i13/2+g9/2). 【总页数】6页(P.583-588)
【关键词】多粒子系统;能级统计;粒子－转子模型;量子混沌 【作者】ZHOUXian－Rong;MENGJie;等 【
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Energy Level Statistics in Particle—Rotor Model
