科研之友
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摘要
By the algebraic method we study the approximate solution to the Dirac equation with scalar and vector modified Poschl-Teller (MPT) potentials carrying pseudospin symmetry. The transcendental energy equation and spinor wave functions with arbitrary spin-orbit coupling quantum number k are presented. It is found that there exist only negative-energy states for bound states under pseudospin symmetry, and the energy levels will approach a constant when the potential parameter a goes to zero. There also exist the corresponding degenerate states between (n 1, k-2) and (n, k) in the case of pseudospin symmetry.
- 出版日期2009-8
- 单位西安文理学院
