Long-distance free-space quantum cryptography

2002 ◽  
Author(s):  
Christian Kurtsiefer ◽  
P. Zarda ◽  
M. Halder ◽  
Ph. M. Gorman ◽  
Paul R. Tapster ◽  
...  
Keyword(s):  
Quantum Cryptography ◽  
Free Space ◽  
Long Distance

scholarly journals Long-Distance Free-Space Measurement-Device-Independent Quantum Key Distribution

2020 ◽  
Vol 125 (26) ◽  
Author(s):  
Yuan Cao ◽  
Yu-Huai Li ◽  
Kui-Xing Yang ◽  
Yang-Fan Jiang ◽  
Shuang-Lin Li ◽  
...  
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Long Distance ◽  
Measurement Device ◽  
Space Measurement ◽  
Measurement Device Independent

Free-Space Quantum Cryptography

2005 ◽  
pp. 187-209
Author(s):  
C Kurtsiefer ◽  
M Halder ◽  
H Weinfurter ◽  
P Zarda ◽  
P Tapster ◽  
...  
Keyword(s):  
Quantum Cryptography ◽  
Free Space

scholarly journals Comparison of Free-Space and Fiber-Based Transmission Systems in Quantum Cryptography

2009 ◽  
Vol 7 (ists26) ◽  
pp. Pj_7-Pj_12
Author(s):  
Morio TOYOSHIMA ◽  
Yozo SHOJI ◽  
Christian SCHAEFER ◽  
Yoshihisa TAKAYAMA ◽  
Hiroo KUNIMORI ◽  
...  
Keyword(s):  
Quantum Cryptography ◽  
Free Space ◽  
Transmission Systems

scholarly journals Study the effect of Iraqi weather parameter in FSO communication using different wavelength (650, 532) nm

2018 ◽  
Vol 16 (36) ◽  
pp. 104-112
Author(s):  
Abdullah A. Abdullah
Keyword(s):  
Laser Beam ◽  
Free Space ◽  
Beam Divergence ◽  
Atmospheric Conditions ◽  
Transmitted Power ◽  
Weather Factors ◽  
Long Distance ◽  
Great Idea ◽  
High Bandwidth ◽  
532 Nm

Light has already becomes a popular means of communication, and the high-bandwidth data into free space without the use of wires. A great idea took us to design a new system for transmitting sound through free space at (650, 532) nm wavelengths using reflective mirrors under different atmospheric conditions. The study showed us the effect of various weather factors (temperature, wind speed and humidity) on these wavelengths for different distances. As well as studying the attenuation caused by long-distance laser and beam divergence, A reflective dish was used to focus the spot of the laser beam on the photocell. Results were discussed under the effect of these factors and the attenuation resulting from the beam divergence. Thus, the system performance can be improved for range and the quantity transfer data by increasing transmitted power and reducing the divergence of the laser beam.

Practical free space quantum cryptography

2006 ◽  
Author(s):  
T. Schmitt-Manderbach ◽  
H. Weier ◽  
N. Regner ◽  
Ch. Kurtsiefer ◽  
H. Weinfurter
Keyword(s):  
Quantum Cryptography ◽  
Free Space

scholarly journals Realization of Free‐Space Long‐Distance Self‐Healing Bessel Beams

2019 ◽  
Vol 13 (10) ◽  
pp. 1900103 ◽  
Author(s):  
Christian Vetter ◽  
Ralf Steinkopf ◽  
Klaus Bergner ◽  
Marco Ornigotti ◽  
Stefan Nolte ◽  
...  
Keyword(s):  
Free Space ◽  
Self Healing ◽  
Long Distance ◽  
Bessel Beams

Free-space quantum cryptography with quantum and telecom communication channels

2008 ◽  
Vol 63 (1-4) ◽  
pp. 179-184 ◽  
Author(s):  
Morio Toyoshima ◽  
Yoshihisa Takayama ◽  
Werner Klaus ◽  
Hiroo Kunimori ◽  
Mikio Fujiwara ◽  
...  
Keyword(s):  
Quantum Cryptography ◽  
Free Space ◽  
Communication Channels

scholarly journals Free-Space Quantum Cryptography

2005 ◽  
pp. 367-374
Author(s):  
R. J. Hughes ◽  
W. T. Buttler ◽  
P. G. Kwiat ◽  
S. K. Lamoreaux ◽  
G. L. Morgan ◽  
...  
Keyword(s):  
Quantum Cryptography ◽  
Free Space

Free-space quantum cryptography for metropolitan areas

2006 ◽  
Author(s):  
M. Fürst ◽  
T. Schmitt-Manderbach ◽  
H. Weier ◽  
I. Ordavo ◽  
H. Weinfurter
Keyword(s):  
Quantum Cryptography ◽  
Free Space ◽  
Metropolitan Areas
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