2 citations · 4 across the 6 of their papers we have counts for
Showing 1997 · quant-phShow all
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quant-ph1997
The Spectral Theory of Perturbative Decays
D. Cocolicchio, M. Viggiano
In this paper, we propose a complex approach to evaluate a function sum of two noncommuting non Hermitian operators. Then, it is proposed an explicit expansion of the evolution ope…
quant-ph1997★ 1 cited
The WKB Approximation without Divergences
D. Cocolicchio, M. Viggiano
In this paper, the WKB approximation to the scattering problem is developed without the divergences which usually appear at the classical turning points. A detailed procedure of co…