2024
DOI: 10.1038/s41598-024-61461-0
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Low-complexity continuous-variable quantum key distribution with true local oscillator using pilot-assisted frequency locking

Andres Ruiz-Chamorro,
Aida Garcia-Callejo,
Veronica Fernandez

Abstract: In the domain of continuous variable quantum key distribution (CV-QKD), a significant challenge arises in achieving precise frequency synchronization, an issue commonly termed as frequency locking. This involves matching the optical frequencies of both the quantum signal laser and the local oscillator laser for accurate symbol demodulation during the exchange of quantum keys. As such, implementations today still grapple with maintaining precise synchronization between sender and receiver frequencies, occasiona… Show more

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