Abstract
In this contribution, we briefly recall the fundamental optical and quantum optical properties of single photons and photon pairs, like coherence, purity, indistinguishability and entanglement, which are necessary to understand their huge potential for quantum information applications. We put special emphasis on resonant excitation schemes of excitons and biexcitons in semiconductor quantum dots since these provide photon wave packets with superior properties. This includes continuous-wave and pulsed excitation, rapid adiabatic passage, spin-flip Raman transitions, two-photon excitation and phonon-assisted excitation methods for excitons and biexcitons. We then review the recent progress on the generation of single and entangled photon states under these different resonant excitation schemes and discuss the pro and cons of the different methods.
Published Version
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