Quantum dots get a bright upgrade

2025/01/09 by Ding, Fei
#530 #Bragg resonator #Quantum dots #quantum communication protocols

paper · doi:10.15488/18320

Abstract

Developing a bright, deterministic source of entangled photon pairs has been an outstanding scientific and technological challenge. Semiconductor quantum dots are a promising candidate for this task. A new device combining a circular Bragg resonator and a piezoelectric actuator achieves high brightness and entanglement fidelity simultaneously, overcoming previous limitations. This breakthrough enhances quantum dot applications in entanglement-based quantum communication protocols.

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