@article { , title = {Calculating energy levels of a double-well potential in a two- dimensional system by expanding the potential function around its minimum}, abstract = {A determination of the eigenvalues for a three-dimensional system is made by expanding the potential functionV(x,y,z;Z2, λ,β)= ?Z2[x2+y2+z2]+λ \{x4+y4+z4+2β[x2y2+x2z2+y2z2]\}, around its minimum. In this paper the results of extensive numerical calculations using this expansion and the Hill-determinant approach are reported for a large class of potential functions and for various values of the perturbation parametersZ2, λ, and β. PACS No.:03.65}, doi = {10.1139/p97-023}, eissn = {1208-6045}, issn = {0008-4204}, issue = {10}, journal = {Canadian Journal of Physics}, note = {Batch 005. Output ID 37141.}, pages = {705-714}, publicationstatus = {Published}, publisher = {NRC Research Press (Canadian Science Publishing)}, url = {https://hull-repository.worktribe.com/output/405457}, volume = {75}, keyword = {Specialist Research - Other, General Physics and Astronomy}, year = {1997}, author = {Witwit, M. R. M. and Gordon, N. A.} }