High yield and ultrafast sources of electrically triggered entangled-photon pairs based on strain-tunable quantum dots.

ABSTRACT: Triggered sources of entangled photon pairs are key components in most quantum communication protocols. For practical quantum applications, electrical triggering would allow the realization of compact and deterministic sources of entangled photons. Entangled-light-emitting-diodes based on semiconductor quantum dots are among the most promising sources that can potentially address this task. However, entangled-light-emitting-diodes are plagued by a source of randomness, which results in a very low probability of finding quantum dots with sufficiently small fine structure splitting for entangled-photon generation (∼10(-2)). Here we introduce strain-tunable entangled-light-emitting-diodes that exploit piezoelectric-induced strains to tune quantum dots for entangled-photon generation. We demon

SUBMITTER: Zhang J 

PROVIDER: S-EPMC4686767 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature