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

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

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

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

scholarly journals Practical quantum cryptography for secure free-space communications

2010 ◽  
pp. 208-217
Author(s):  
Mr. A. Salai Jeyaseelan ◽  
Ms.S. Mohana Priya
Keyword(s):  
Quantum Cryptography ◽  
Free Space ◽  
Key Generation ◽  
Test Range ◽  
Ground Station ◽  
Transmission Distance ◽  
Shared Secret ◽  
Atmospheric Path ◽  
Cryptographic Key ◽  
Point To Point

Quantum Cryptography is an emerging technology in which two parties may simultaneously generate shared, secret cryptographic key material using the transmission of quantum states of light. The security of these transmissions is based on the inviolability of the laws of quantum mechanics and information – theoretically secure post- processing methods. An adversary can neither successfully tap the quantum transmissions, nor evade detection, owing to Heisenberg’s uncertainty principle. In this paper we describe the theory of quantum cryptography and the most recent results from our experimental free space system with which we have demonstrated for the first time the feasibility of quantum key generation over a point-to-point outdoor atmospheric path in daylight. We achieved a transmission distance of 0.5km which was limited only by the length of the test range. Our results provide strong evidence that cryptographic key material could be generated on the demand between a ground station and a satellite (or between two satellites), allowing a satellite to be securely re-keyed on orbit. We present a feasibility analysis of surface-to-satellite quantum key generation.

Quantum cryptography in free space with coherent-state light

2002 ◽  
Author(s):  
Geraldo A. Barbosa ◽  
Eric Corndorf ◽  
Prem Kumar ◽  
Horace P. Yuen
Keyword(s):  
Coherent State ◽  
Quantum Cryptography ◽  
Free Space

Free space quantum cryptography using compact polarization entangled photon pair source

2005 ◽  
Author(s):  
I. Marcikic ◽  
A. Ling ◽  
Shiang Yong Looi ◽  
D. Gosal ◽  
A. Lamas-Linares ◽  
...  
Keyword(s):  
Quantum Cryptography ◽  
Free Space ◽  
Photon Pair
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