Electronic Structure of Helium Atom in a Quantum Dot

作     者：Jayanta K.Saha S.Bhattacharyya T.K.Mukherjee 

作者机构：Indian Association for the Cultivation of Science Jadavpur Kolkata 700032 India Aliah University IIA/27 New Town Kolkata 700156 India Acharyya Prafulla Chandra College New Barrackpore Kolkata 700131 India Narula Institute of Technology Agarpara Kolkata 700109 India 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2016年第65卷第3期

页      面：347-353页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Financial Support under Grant No.37(3)/14/27/2014-BRNS from the Department of Atomic Energy,BRNS,Government of India Financial Support under Grant No.PSW-160/14-15(ERO)from University Grants Commission,Government of India 

主　　题：helium atom variational method quantum dot correlation 

摘      要：Bound and resonance states of helium atom have been investigated inside a quantum dot by using explicitly correlated Hylleraas type basis set within the framework of stabilization *** be specific,precise energy eigenvalues of bound 1sns(~1S^e)(n=1-6)states and the resonance parameters *** and widths of^lS^e states due to 2sns(n=2-5)and 2pnp(n=2-5)configurations of confined helium below N=2 ionization threshold of He^+have been *** two-parameter(Depth and Width)finite oscillator potential is used to represent the confining potential due to the quantum *** has been explicitly demonstrated that the electronic structural properties become sensitive functions of the dot *** is observed from the calculations of ionization potential that the stability of an impurity ion within a quantum dot may be manipulated by varying the confinement parameters.A possibility of controlling the autoionization lifetime of doubly excited states of two-electron ions by tuning the width of the quantum cavity is also discussed here.