Optimal coupled-cluster approximation for the linear E-e Jahn-Teller effect
Publication in refereed journal


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摘要By introducing a slight modification to the successive coupled-cluster approximation, we have developed an optimal coupled-cluster approximation, which can take care of both the accuracies of the ground-state energy and wavefunction estimates, for the ground state of the linear E-e Jahn-Teller effect. Over the whole range of the coupling parameter, our results up to the third level of approximation show good agreement with the exact numerical diagonalization results and are better than those from earlier analytical treatments. The mathematical treatment in this work is simple and could be easily extended to the studies of other fermion-boson interacting systems.
著者Wong WH, Lo CF
期刊名稱Physics Letters A
出版年份1996
月份11
日期25
卷號223
期次1-2
出版社ELSEVIER SCIENCE BV
頁次123 - 128
國際標準期刊號0375-9601
電子國際標準期刊號1873-2429
語言英式英語
Web of Science 學科類別Physics; Physics, Multidisciplinary; PHYSICS, MULTIDISCIPLINARY

上次更新時間 2020-04-06 於 00:11