Where,
h = Planck Constant/2π
q = Particle Wave Number
m = Particle Mass
jII = Step Potential Probability Current or Particle Flux in Zone II
t = Amplitude Transmission Coefficient
Where,
λvac = Wavelength of electromagnetic radiation emitted in vacuum
R = Rydberg Constant,approximately 1.097 x 107 m-1,
n1, n2 = Integers greater than or equal to 1 such that n1 < n2 , corresponding to the principal quantum numbers of the orbitals occupied before and after the 'quantum leap'.