Impact of emerging quantum information technologies (QIT) on information fusion: panel summary (Conference Presentation)

2018 ◽  
Author(s):  
Erik Blasch ◽  
Bhashyam Balaji ◽  
Ivan Kadar
Keyword(s):  
Quantum Information ◽  
Information Fusion ◽  
Information Technologies ◽  
Panel Summary

Quantum cryptography

2009 ◽  
Author(s):  
Stephen Barnett
Keyword(s):  
Quantum Information ◽  
Quantum Cryptography ◽  
Quantum Key Distribution ◽  
Communication Systems ◽  
Information Technologies ◽  
Key Distribution ◽  
Julius Caesar ◽  
Secure Communications ◽  
Quantum Communications ◽  
History Of

The practical implementation of quantum information technologies requires, for the most part, highly advanced and currently experimental procedures. One exception is quantum cryptography, or quantum key distribution, which has been successfully demonstrated in many laboratories and has reached an advanced level of development. It will probably become the first commercial application of quantum information. In quantum key distribution, Alice and Bob exploit a quantum channel to create a secret shared key comprising a random string of binary digits. This key can then be used to protect a subsequent communication between them. The principal idea is that the secrecy of the key distribution is ensured by the laws of quantum physics. Proving security for practical communication systems is a challenging problem and requires techniques that are beyond the scope of this book. At a fundamental level, however, the ideas are simple and may readily be understood with the knowledge we have already acquired. Quantum cryptography is the latest idea in the long history of secure (and not so secure) communications and, if it is to develop, it will have to compete with existing technologies. For this reason we begin with a brief survey of the history and current state of the art in secure communications before turning to the possibilities offered by quantum communications. The history of cryptography is a long and fascinating one. As a consequence of the success or, more spectacularly, the failure of ciphers, wars have been fought, battles decided, kingdoms won, and heads lost. In the information age, ciphers and cryptosystems have become part of everyday life; we use them to protect our computers, to shop over the Internet, and to access our money via an ATM (automated teller machine). One of the oldest and simplest of all ciphers is the transposition or Caesarean cipher (attributed to Julius Caesar), in which the letters are shifted by a known (and secret) number of places in the alphabet. If the shift is 1, for example, then A is enciphered as B, B→C, · · ·, Y→Z, Z→A. A shift of five places leads us to make the replacements A→F, B→G, · · ·, Y→D, Z→E.

Fiber-optic quantum information technologies

2008 ◽  
pp. 829-880 ◽  
Author(s):  
Prem Kumar ◽  
Jun Chen ◽  
Paul L. Voss ◽  
Xiaoying Li ◽  
Kim Fook Lee ◽  
...  
Keyword(s):  
Quantum Information ◽  
Information Technologies ◽  
Fiber Optic

Quantum-entanglement storage and extraction in quantum network node

2018 ◽  
Vol 16 (01) ◽  
pp. 1850009 ◽  
Author(s):  
ZhuoYu Shan ◽  
Yong Zhang
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Quantum Entanglement ◽  
Information Technologies ◽  
Quantum Information Processing ◽  
Bell State ◽  
Nitrogen Vacancy ◽  
Quantum Network ◽  
Nuclear Spins ◽  
Nv Centers

Quantum computing and quantum communication have become the most popular research topic. Nitrogen-vacancy (NV) centers in diamond have been shown the great advantage of implementing quantum information processing. The generation of entanglement between NV centers represents a fundamental prerequisite for all quantum information technologies. In this paper, we propose a scheme to realize the high-fidelity storage and extraction of quantum entanglement information based on the NV centers at room temperature. We store the entangled information of a pair of entangled photons in the Bell state into the nuclear spins of two NV centers, which can make these two NV centers entangled. And then we illuminate how to extract the entangled information from NV centers to prepare on-demand entangled states for optical quantum information processing. The strategy of engineering entanglement demonstrated here maybe pave the way towards a NV center-based quantum network.

DIAMOND-BASED QUANTUM INFORMATION TECHNOLOGIES AT A NANOSCALE LEVEL

2007 ◽  
Author(s):  
S. KILIN ◽  
A. NIZOVTSEV ◽  
J.-F. ROCH ◽  
F. TREUSSART ◽  
J. WRACHTRUP ◽  
...  
Keyword(s):  
Quantum Information ◽  
Information Technologies ◽  
Nanoscale Level
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