R. Cianci et A. Khrennikov, P-ADIC NUMBERS AND RENORMALIZATION OF EIGENFUNCTIONS IN QUANTUM-MECHANICS, Physics letters. Section B, 328(1-2), 1994, pp. 109-112
In this paper we show how p-adic analysis can be used, in some cases,
to treat divergent series in quantum mechanics. We shall consider exam
ples in which the usual theory of Schrodinger equation would give rise
to an infinite for the expectation value of die energy operator, on t
he contrary, by using p-adic analysis, we are able to get a convergent
expansion and obtain a finite rational value for the energy.