Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/12581
Title: Free-space quantum key distribution with single photons from defects in hexagonal boron nitride
Authors: Samaner, Çağlar
Paçal, Serkan
Mutlu, Görkem
Uyanık, Kıvanç
Ateş, Serkan
Keywords: B92 protocol
Hexagonal boron nitride
Quantum communication
Single photon sources
Quantum key distribution
Issue Date: Sep-2022
Publisher: Wiley
Abstract: Efficient single photon generation is an important requirement for several practical applications in quantum technologies, including quantum cryptography. A proof-of-concept demonstration of free-space quantum key distribution (QKD) is presented with single photons generated from an isolated defect in hexagonal boron nitride (hBN). The bright source operating at room temperature is integrated into a QKD system based on B92 protocol and a sifted key rate of 238 bps with a quantum bit error rate of 8.95% are achieved at 1 MHz clock rate. The effect of temporal filtering of detected photons on the performance of QKD parameters is also studied. It is believed that these results will stimulate the research on optically active defects in hBN as well as other 2D-based quantum emitters and their applications within quantum information technologies including practical QKD systems.
URI: https://doi.org/10.1002/qute.202200059
https://hdl.handle.net/11147/12581
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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