|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'500'096
Articles rated: 2609
18 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Security proof for twin-field quantum key distribution with discrete phase randomization | | Rong Wang
; Zhen-Qiang Yin
; Feng-Yu Lu
; Shuang Wang
; Wei Chen
; Wei Huang
; Bing-Jie Xu
; Guang-Can Guo
; Zheng-Fu Han
; | | Date: |
15 Apr 2019 | | Abstract: | Twin-field quantum key distribution (TF-QKD) and its variant protocols are
highly attractive due to its advantage of overcoming the well-known rate-loss
limit for QKD protocols, i.e. $Rleqslant log_2(1-eta)$ with $eta$ standing
for the channel transmittance. These protocols can be divided into two types,
with phase randomization from $[0,pi]$ and without phase randomization. Here,
we generalize the two types into a unified protocol, where Alice and Bob
prepare coherent states with $2M$ ($Min{1,2,3...}$) different phases.
Moreover, our security proof indicates that the achievable distance becomes
longer with $M$ exponentially increasing, as a trade-off, the secret key rate
will be lowered at short distance due to phase postselection. Numerical
simulations show that the protocol with $M=2$ may be the best choice in
experiment. | | Source: | arXiv, 1904.7074 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER