TY - JOUR
T1 - Spin-orbit interaction for the double ring-shaped oscillator
AU - Chen, Chang Yuan
AU - Lu, Fa Lin
AU - Sun, Dong Sheng
AU - You, Yuan
AU - Dong, Shi Hai
N1 - Publisher Copyright:
© 2016 Elsevier Inc.
PY - 2016/8/1
Y1 - 2016/8/1
N2 - The spin-orbit interactions (SOI) for the single and double ring-shaped oscillator potentials are studied as an energy correction to the Schrödinger equation. We find that the degeneracy for the energy levels with angular quantum number m=0 keeps invariant in the case of the SOI. The degeneracy is still 2 for single ring-shaped potential and 4 for double ring-shaped potential. However, for the energy levels with angular quantum number m≠0 the degeneracy is reduced from original 4 for the single ring-shaped potential and 8 for the double ring-shaped potential to 2. That is, their energy levels in the case of the SOI are split to 2 (single) and 4 (double) sublevels. There exists an accidental degeneracy for the cases |m|=2, 3, 4, . . .. We note that around the critical value b0, the energy levels are reversed. We also discuss some special cases for η=2, 3, 4, 5, 6, . . ., and the b=0, c>0. It should be pointed out that the parameter b0 is relevant for the angular part parameter b in the single and double ring-shaped potentials and it makes the energy levels changed from positive to negative, but the parameter c corresponds to the angular part parameter in double ring-shaped potential and the η is related to it. This model can be useful for investigations of axial symmetric subjects like the ring-shaped molecules or related problems and may also be easily extended to a many-electron theory.
AB - The spin-orbit interactions (SOI) for the single and double ring-shaped oscillator potentials are studied as an energy correction to the Schrödinger equation. We find that the degeneracy for the energy levels with angular quantum number m=0 keeps invariant in the case of the SOI. The degeneracy is still 2 for single ring-shaped potential and 4 for double ring-shaped potential. However, for the energy levels with angular quantum number m≠0 the degeneracy is reduced from original 4 for the single ring-shaped potential and 8 for the double ring-shaped potential to 2. That is, their energy levels in the case of the SOI are split to 2 (single) and 4 (double) sublevels. There exists an accidental degeneracy for the cases |m|=2, 3, 4, . . .. We note that around the critical value b0, the energy levels are reversed. We also discuss some special cases for η=2, 3, 4, 5, 6, . . ., and the b=0, c>0. It should be pointed out that the parameter b0 is relevant for the angular part parameter b in the single and double ring-shaped potentials and it makes the energy levels changed from positive to negative, but the parameter c corresponds to the angular part parameter in double ring-shaped potential and the η is related to it. This model can be useful for investigations of axial symmetric subjects like the ring-shaped molecules or related problems and may also be easily extended to a many-electron theory.
KW - Accidental degeneracy
KW - Degenerate perturbation theory
KW - Double ring-shaped oscillator
KW - Spin-orbit interaction
UR - http://www.scopus.com/inward/record.url?scp=84965010306&partnerID=8YFLogxK
U2 - 10.1016/j.aop.2016.04.012
DO - 10.1016/j.aop.2016.04.012
M3 - Artículo
SN - 0003-4916
VL - 371
SP - 183
EP - 198
JO - Annals of Physics
JF - Annals of Physics
ER -