Fermi golden rule

Inhibited spontaneous emission of quantum dots observed in a 3D photonic band gap
M. D. Leistikow, A. P. Mosk, E. Yeganegi, S. R. Huisman, A. Lagendijk, and W. L. Vos
Phys. Rev. Lett. 107, 193903: 1-5 (2011)

Orientation-dependent spontaneous emission rates of a two-level quantum emitter in any nanophotonic environment
W. L. Vos, A. F. Koenderink, and I. S. Nikolaev
Phys. Rev. A 80, 053802: 1-7 (2009)

Controlling the dynamics of spontaneous emission from quantum dots by photonic crystals
P. Lodahl, A. F. van Driel, I. S. Nikolaev, A. Irman, K. Overgaag, D. Vanmaekelbergh, and W. L. Vos
Nature 430, 654-657 (2004)