ELFT HÍRADÓ

[Szeminárium koordinátor <sem-admin AT szfki.hu>]

SZFI SeminarThomas BroughamCNQO, Department of Physics, University of 
Strathclyde, Glasgow, UK (host: Kiss Tamás)Analysis of satellite-based 
quantum key distribution under practical constraintsTuesday, 16 April 2024, 
10:00, KFKI Campus, Bldg. 1, 2nd floor, Conference RoomGlobal quantum 
communication networks require efficient long-distance distribution of 
quantum signals. In the absence of quantum memories, optical fibre 
communications are range-limited due to exponential losses.  Satellites offer 
a promising means of distributing quantum signals over intercontinental 
distances. However, the design of satellite quantum key distribution (SatQKD) 
systems presents unique challenges over terrestrial networks. For example, 
the limited transmission times between satellites and their ground stations 
impose severe constraints.  We present modelling of the efficient 
Bennett-Brassard protocol (BB84), using decoy pulses. The analysis takes 
account of many realistic constraints. The modelling is based on our open 
source SatQuMA software suite. Our results can be used to both guide the 
design and analysis of future missions, and to provide performance 
benchmarks.   Minden érdeklődőt szívesen látunk! - Everyone is welcome 
to attend.Attila Nagysem-admin AT szfki.hu