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Unformatted text preview: E V . (c) For a potential such as this, which does not go back to zero to the right of the barrier, the transmission coefficient is not simply F 2 / A 2 (with A the incident amplitude and F the transmitted amplitude), because the transmitted wave travels at a different speed. Show that T = E V E F 2 A 2 for E V . Hint: You can figure it out using Equation 2.98, or from the probability current (Problem 2.19). What is T for E V ? (d) For E V , calculate the transmission coefficient for the step potential, and check that T R = 1 ....
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- Fall '08