quantitykind:EinsteinTransitionProbability

Type
Description

Given two atomic states of energy $$E_j$$ and $$E_k$$. Let $$E_j > E_k$$. Assume the atom is bathed in radiation of energy density $$u(w)$$. Transitions between these states can take place in three different ways. Spontaneous, induced/stimulated emission, and induced absorption. $$A_jk$$ represents the Einstein transition probability for spontaneous emission.

Properties
$$\frac{-dN_j}{dt} = A_jkN_j$$, where $$-dN_j$$ is the number of molecules spontaneously leaving the state j for the state k during a time interval of duration $$dt$$, $$N_j$$ is the number of molecules in the state j, and $$E_j > E_k$$.
A_jkN_j
Annotations
Given two atomic states of energy $$E_j$$ and $$E_k$$. Let $$E_j > E_k$$. Assume the atom is bathed in radiation of energy density $$u(w)$$. Transitions between these states can take place in three different ways. Spontaneous, induced/stimulated emission, and induced absorption. $$A_jk$$ represents the Einstein transition probability for spontaneous emission.
Einstein Transition Probability(en)

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