Detailed Balance Applied to Matter and Radiation
Einstein required upward and downward atomic transitions to balance in thermal equilibrium, using that condition to connect transition probabilities with the equilibrium radiation spectrum.
Albert Einstein · Event
Einstein required upward and downward atomic transitions to balance in thermal equilibrium, using that condition to connect transition probabilities with the equilibrium radiation spectrum.

Einstein required upward and downward atomic transitions to balance in thermal equilibrium, using that condition to connect transition probabilities with the equilibrium radiation spectrum.