Phy5646/An Example of spontaneous emission calculation

(Submitted by Team 1)

This example was taken from "Theory and Problems of Quantum Mechanics", Yoaf Peleg, et al, p. 298.

Problem: Find the transition rate of spontaneous emission for a hydrogen atom in the first excited state.

Solution: The transition rate for $2p\rightarrow 1s$ is given by

Failed to parse (unknown function "\hbarc"): {\displaystyle \Gamma_{1s2p} = \frac{4}{3}\frac{e^{2}\omega^{3}_{21}}{\hbarc^{3}} }