首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Spherical confinement of coulombic systems inside an impenetrable box: H atom and the Hulthén potential
Authors:Amlan K Roy
Institution:Division of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Nadia, India
Abstract:The generalized pseudospectral method is used to study spherical confinement in two simple Coulombic systems: (i) well celebrated and heavily studied H atom (ii) relatively less explored Hulthén potential. In both instances, arbitrary cavity size as well as low and higher states are considered. Apart from bound state eigenvalues, eigenfunctions, expectation values, quite accurate estimates of the critical cage radius for H atom for all the 55 states corresponding to urn:x-wiley::media:qua24929:qua24929-math-0001, are also examined. Some of the latter are better than previously reported values. Degeneracy and energy ordering under the isotropic confinement situation are discussed as well. The method produces consistently high‐quality results for both potentials for small as well as large cavity size. For the H atom, present results are comparable to best theoretical values, while for the latter, this work gives considerably better estimates than all existing work so far. © 2014 Wiley Periodicals, Inc.
Keywords:spherical confinement  H‐atom  Hulthé  n potential  impenetrable wall  generalized pseudospectral method  critical cage radius  screened Coulomb potential
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号