Dear colleagues,
We are pleased to announce the next online seminar on QOART (Quantum optics and related topics)!
Speaker: Roman Goncharov
Title: Numerical analysis of a free-space subcarrier wave quantum key distribution system for ship-to-port communication
Abstract: We present a comprehensive investigation of subcarrier wave QKD (SCW QKD) application to ship-to-port links. Our analysis specifically addresses the critical challenges inherent to maritime environments, particularly the complex interplay between atmospheric turbulence and fog-induced visibility reduction. We demonstrate the significant influence of these environmental factors on both the quantum bit error rate (QBER) and secure key generation rate.
We present insights into the critical trade-offs between detector types, offering strategies to mitigate noise while maximizing efficiency. Our research introduces a methodology for modeling transmittance and noise effects, which we have developed to incorporate turbulence loss coefficients, extinction models, and thermal photon noise. Importantly, we employ finite-key security analysis to ensure our findings reflect robust system performance under real-world conditions.
We show that by leveraging high spectral efficiency and adaptability, SCW QKD emerges as a compelling solution for extending quantum communications across various free-space environments, including satellite applications and moving devices.
Date and time: 11-Dec-2025 at 4:00pm Moscow time
Duration: 30-90 mins
Language: The talk will be delivered in English
Link to join the seminar: https://mian.ktalk.ru/cyi5u831v1cs?pinCode=6468
QOART Seminar: https://sites.google.com/view/qoart/seminar
Best regards,
Ranjit
+7 909 680 67 87
https://www.mathnet.ru/eng/person86793
QOART Telegram Channel: https://t.me/+i6rnhM_Wp1YwY2Ji
Optical ‘Cat-like’ State: https://www.youtube.com/watch?v=4FBurftcrMY
QOART Conferecne: https://sites.google.com/view/qoart/2025
QOART Seminar: https://sites.google.com/view/qoart/seminar
