Special comparison theorem for the Dirac equation.
- Published Article
Physical review letters
- Publication Date
Aug 29, 2008
If a central vector potential V(r,a) in the Dirac equation is monotonic in a parameter a, then a discrete eigenvalue E(a) is monotonic in a. For such a special class of comparisons, this generalizes an earlier comparison theorem that was restricted to node free states. Moreover, the present theorem applies to every discrete eigenvalue.
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The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/18851588