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Latest Quantum cryptography Stories

2009-11-18 14:35:59

To exploit the quantum world to the fullest, a key commodity is entanglement"”the spooky, distance-defying link that can form between objects such as atoms even when they are completely shielded from one another. Now, physicists at the Joint Quantum Institute (JQI), a collaborative organization of the National Institute of Standards and Technology (NIST) and the University of Maryland, have developed a promising new source of entangled photons using quantum dots tweaked with a laser....

2009-10-16 10:17:18

Key Laboratory of Quantum Information (CAS), University of Science and Technology of China has recently demonstrated a metropolitan Quantum Cryptography Network (QCN) for Government Administration in Wuhu, China. Because of its scientific significance and social impact, the project is reported in Volume 54, Issue 17 (September, 2009) of the Chinese Science Bulletin authored by Fang-xing Xu et al. During the process of economic globalization, information security has become more and more...

2009-10-09 08:00:00

GENEVA, Switzerland, October 9 /PRNewswire/ -- The SwissQuantum testbed network was set up in Geneva by the University Of Geneva, the University of Applied Sciences of Western Switzerland and the company id Quantique in order to demonstrate long-term operation of quantum cryptography technology in a meshed network setting. Contrary to quantum networks previously deployed, it is used to carry real traffic and is independently tested. Quantum Cryptography is a technology that allows...

2009-10-08 09:26:21

Chaotic behavior is the rule, not the exception, in the world we experience through our senses, the world governed by the laws of classical physics. Even tiny, easily overlooked events can completely change the behavior of a complex system, to the point where there is no apparent order to most natural systems we deal with in everyday life. The weather is one familiar case, but other well-studied examples can be found in chemical reactions, population dynamics, neural networks and even the...

2009-09-23 07:48:08

Diamonds, it has long been said, are a girl's best friend. But a research team including a physicist from the National Institute of Standards and Technology (NIST) has recently found* that the gems might turn out to be a patient's best friend as well. The team's work has the long-term goal of developing quantum computers, but it has borne fruit that may have more immediate application in medical science. Their finding that a candidate "quantum bit" has great sensitivity to magnetic fields...

2009-09-08 09:12:00

NEW YORK, Sept. 8 /PRNewswire/ -- Reportlinker.com announces that a new market research report is available in its catalogue. Quantum Cryptography http://www.reportlinker.com/p0131240/Quantum-Cryptography.html This report analyzes the Global Market for Quantum Cryptography in Millions of US$. Annual forecasts are provided for the period 2010 through 2015. The report profiles 15 companies including many key and niche players worldwide such as id Quantique SA, Cerberis, MagiQ Technologies,...

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2009-09-04 10:45:00

A new silicon chip the size of a penny uses photons to run Shor's algorithm - a well-known quantum approach - to solve mathematic problems, BBC News reported. Before the development, the algorithm required laboratory-sized optical computers to compute the two numbers that multiply together to form a given figure. Researchers say such factoring is the basis for a wide variety of encryption schemes and the new chip could easily be scaled up to handle more complex computing. Quantum computing...

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2009-08-06 14:55:00

Raising prospects for building a practical quantum computer, physicists at the National Institute of Standards and Technology (NIST) have demonstrated sustained, reliable information processing operations on electrically charged atoms (ions). The new work, described in the August 6 issue of Science Express,* overcomes significant hurdles in scaling up ion-trapping technology from small demonstrations to larger quantum processors.In the new demonstration, NIST researchers repeatedly performed...

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2009-07-30 12:50:00

The first desktop computers changed the way we managed data forever. Three decades after their introduction, we rely on them to manage our time, social life and finances "” and to keep this information safe from prying eyes and online predators.So far, so good, despite an occasional breach. But our security and our data could be compromised overnight when the first quantum computer is built, says Dr. Julia Kempe of Tel Aviv University's Blavatnik School of Computer Science. These new...

2009-07-02 16:05:56

A U.S.-led team of physicists says it has created the first rudimentary, solid-state quantum processor, moving science closer to building a quantum computer. Yale University scientists said they also used the two-qubit superconducting chip to successfully run elementary algorithms, such as a simple search, demonstrating quantum information processing with a solid-state device for the first time. Our processor can perform only a few very simple quantum tasks, which have been demonstrated...