Single photon absorption by a single quantum emitter
arXiv:0707.2037 · doi:10.1103/PhysRevLett.100.093603
Abstract
We show that a three-level lambda quantum emitter with equal spontaneous emission rates on both optically active transitions can absorb an incident light field with a probability approaching unity, provided that the focused light profile matches that of the emitter dipole emission pattern. Even with realistic focusing geometries, our results could find applications in long-distance entanglement of spin qubits.
4 pages, 4 figures
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