Journal
AIP ADVANCES
Volume 12, Issue 5, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0081874
Keywords
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Funding
- Hauser-Raspe Foundation
- European Union's Horizon 2020 Research and Innovation Program [817482]
- Austrian Science Fund (FWF) [Y1067-N27, F7108, W1259, I4380, F7114]
- Defense Advanced Research Projects Agency (DARPA) [HR001120C0068]
- Austrian Science Fund (FWF) [I4380, W1259] Funding Source: Austrian Science Fund (FWF)
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This paper introduces the preparation of time-bin entangled photon pairs by resonantly exciting the biexciton state in a quantum dot using coherent pulses. The implementation of this scheme in a dot embedded in an InP nanowire is analyzed using an effective three-level open system master equation. The resulting entanglement and optimal operating conditions are predicted based on parameters extracted from experimental data.
Resonant excitation of the biexciton state in an InAsP quantum dot by a phase-coherent pair of picosecond pulses allows preparing time-bin entangled pairs of photons via the biexciton-exciton cascade. We show that this scheme can be implemented for a dot embedded in an InP nanowire. The underlying physical mechanisms can be represented and quantitatively analyzed by an effective three-level open system master equation. Simulation parameters including decay and intensity dependent dephasing rates are extracted from experimental data, which in turn let us predict the resulting entanglement and optimal operating conditions. (C) 2022 Author(s).
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