|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'500'096
Articles rated: 2609
18 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Two-photon comb with wavelength conversion and 20-km distribution for quantum communication | | Kazuya Niizeki
; Daisuke Yoshida
; Ko Ito
; Ippei Nakamura
; Nobuyuki Takei
; Kotaro Okamura
; Ming-Yang Zheng
; Xiu-Ping Xie
; Tomoyuki Horikiri
; | | Date: |
12 Oct 2020 | | Abstract: | Quantum computing and quantum communication, have been greatly developed in
recent years and expected to contribute to quantum internet technologies,
including cloud quantum computing and unconditionally secure communication.
However, long-distance quantum communication is challenging mainly because of
optical fiber losses; quantum repeaters are indispensable for fiber-based
transmission because unknown quantum states cannot be amplified with certainty.
In this study, we demonstrate a versatile entanglement source in the telecom
band for fiber-based quantum internet, which has a narrow linewidth of sub-MHz
range, entanglement fidelity of more than 95%, and Bell-state generation even
with frequency multimode. Furthermore, after a total distribution length of
20-km in fiber, two-photon correlation is observed with an easily identifiable
normalized correlation coefficient, despite the limited bandwidth of the
wavelength converter. The presented implementation promises an efficient method
for entanglement distribution that is compatible with quantum memory and
frequency-multiplexed long-distance quantum communication applications. | | Source: | arXiv, 2010.05438 | | 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