.png){kind=icon}
.png){kind=icon}
Return
Clock-offset recovery with sublinear complexity enables synchronization on low-level hardware for quantum key distribution
.png){kind=icon}
OA
AI
J
N
J
R
DOI：10.1103/PhysRevApplied.23.044015.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
We introduce iQSync, a clock-offset recovery method designed for implementation on low-level hardware, such as field-programmable gate arrays or microcontrollers, for quantum key distribution (QKD). iQSync requires minimal memory, only a simple instruction set (e.g., no floating-point operations), and can be evaluated with sublinear time complexity, typically involving no more than a few thousand iterations of a simple loop. Furthermore, iQSync allows for a precise clock-offset recovery within a few seconds, even for large offsets, and is well suited for scenarios with high channel loss and low signal-to-noise ratio, irrespective of the prepare-and-measure QKD protocol used. We implemented the method on our QKD platform, demonstrating its performance and conformity with analytically derived success probabilities for channel attenuations exceeding 70 dB.
Keywords:
COMMUNICATION
PHOTONS
Journal
IF:
4.4
Papers:
7.1K
Citations:
2.8W
Organization
Cited Papers