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- W4387156657 abstract "We find the single exciton's fine structure splitting (FSS), which splits its degenerate ground state manifold into singlets, nearly vanishes in highly asymmetric quantum dots due to the cancellation of splitting effects with markedly different origin. The dots simulated are those that emerge on top of etch pits through the droplet epitaxy growth process; these etch pit dots break square ($C_{4v}$) spatial symmetry, which has been previously associated with small FSS. Configuration interaction calculations predict a vanishing FSS at a specific finite etch pit displacement from the center of the dot, for a structure far from square symmetry. We thus predict that highly asymmetric quantum dots may still display negligible fine structure splitting, providing new avenues for high-fidelity generation of indistinguishable, polarization entangled photon pairs on demand." @default.
- W4387156657 created "2023-09-30" @default.
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- W4387156657 date "2023-09-26" @default.
- W4387156657 modified "2023-09-30" @default.
- W4387156657 title "Fine structure splitting cancellation in highly asymmetric InAs/InP droplet epitaxy quantum dots" @default.
- W4387156657 doi "https://doi.org/10.48550/arxiv.2309.15062" @default.
- W4387156657 hasPublicationYear "2023" @default.
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