@article{(Open Science Index):https://publications.waset.org/pdf/9997459, title = {Energy-Level Structure of a Confined Electron-Positron Pair in Nanostructure}, author = {Tokuei Sako and Paul-Antoine Hervieux}, country = {}, institution = {}, abstract = {The energy-level structure of a pair of electron and positron confined in a quasi-one-dimensional nano-scale potential well has been investigated focusing on its trend in the small limit of confinement strength ω, namely, the Wigner molecular regime. An anisotropic Gaussian-type basis functions supplemented by high angular momentum functions as large as l = 19 has been used to obtain reliable full configuration interaction (FCI) wave functions. The resultant energy spectrum shows a band structure characterized by ω for the large ω regime whereas for the small ω regime it shows an energy-level pattern dominated by excitation into the in-phase motion of the two particles. The observed trend has been rationalized on the basis of the nodal patterns of the FCI wave functions. }, journal = {International Journal of Physical and Mathematical Sciences}, volume = {8}, number = {2}, year = {2014}, pages = {306 - 309}, ee = {https://publications.waset.org/pdf/9997459}, url = {https://publications.waset.org/vol/86}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 86, 2014}, }