Electron-phonon dynamics in optically excited quantum dots: Exact solution for multiple ultrashort laser pulses

  title={Electron-phonon dynamics in optically excited quantum dots: Exact solution for multiple ultrashort laser pulses},
  author={Alexei Vagov and Vollrath Martin Axt and Tilmann Kuhn},
  journal={Physical Review B},
A model of semiconductor quantum dots coupled to phonons and laser light, which is relevant in the limit of strong electronic confinement, is investigated. For an arbitrary sequence of excitations by ultrafast pulses, analytical solutions are obtained for all pertinent density-matrix elements. The results are nonperturbative with respect to the coupling to both phonons and laser light. The derivation depends neither on a particular choice of electronic wave functions nor on a particular wave… 

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