Bargmann's limit
In quantum mechanics, Bargmann's limit, named for Valentine Bargmann, provides an upper bound on the number Nl of bound states in a system. It takes the form
Note that the Dirac delta function potential attains this limit.
References
- Bargmann, Proc. Nat. Acad. Sci. 38 961 (1952)
- Schwinger, Proc. Nat. Acad. Sci. 47 122 (1961)
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