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Title: Level crossings in complex two-dimensional potentials
Authors: Wang, Q.-H. 
Keywords: Non-Hermitian
PT symmetry
Two-dimensional potentials
Issue Date: Aug-2009
Citation: Wang, Q.-H. (2009-08). Level crossings in complex two-dimensional potentials. Pramana - Journal of Physics 73 (2) : 315-322. ScholarBank@NUS Repository.
Abstract: Two-dimensional PT -symmetric quantum-mechanical systems with the com-plex cubic potential V12 = x2 + y2 + igxy 2 and the complex Hénon-Heiles potential VHH = x2 +y2 +ig(xy2 -x3/3) are investigated. Using numerical and perturbative meth ods, energy spectra are obtained to high levels. Although both potentials respect the PT symmetry, the complex energy eigenvalues appear when level crossing happens between same parity eigenstates. © Indian Academy of Sciences.
Source Title: Pramana - Journal of Physics
ISSN: 03044289
DOI: 10.1007/s12043-009-0123-7
Appears in Collections:Staff Publications

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