On the effectiveness of Gamow's method for calculating decay rates
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We examine Gamow's method for calculating the decay rate of a wave function initially located within a potential well. Using elementary techniques, we examine a very simple, exactly solvable model, in order to show why it is so reliable for calculating decay rates, in spite of its conceptual problems. We also discuss the regime of validity of the exponential decay law.
10 pages, 1 figure, REVTEX. A few modifications, references updated
10 pages, 1 figure, REVTEX. A few modifications, references updated