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In industry parlance, the sender is Alice and the receiver is Bob. By Alison MacGregor It began 25 years ago in the warm coastal waters of Puerto Rico when a stranger swam over to Gilles Brassard and struck up a conversation about using quantum physics to make bank notes impossible to counterfeit. Their chance meeting while attending a theoretical computer science conference would end up revolutionizing the art of code making, also known as cryptography. Some Onoine see the technology as one day making the Internet secure enough that medical professionals could share confidential health data online in ways that would be insecure now. Yet for all its promise, this invention is also making governments cjance.

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They left the island firm friends, returning, respectively, to Montreal and Croton-on-Hudson, a village just north of New York City, where they continued their brainstorming. In industry parlance, the sender is Alice and the receiver is Bob.

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Ina Swiss encoujter, id Quantique SA of Geneva, became the first to sell a quantum cryptography system to the public. Atomic records found in ancient cedar trees in Japan and in Antarctic ice showed the energy from a GRB hit the Earth in the 8th Century.

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Now, a second wave of coverage has come as experiments prove encounted commercial viability of their cryptography technique and fledgling new products make their way to market. He used to play squash and go cross-country skiing too. Stix, G. By Alison MacGregor It began 25 years ago in the warm coastal waters of Puerto Rico when a stranger swam over to Gilles Brassard Onnline struck up a conversation about using quantum physics to make bank notes impossible to counterfeit.

Dr Eleonora Troja from the University of Maryland, lead author of the research paper published in Naturesaid: "If you ranked all the explosions in the universe based on their power, GRBs would be right behind the Big Bang.

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In the midst of all this excitement and controversy is Montreal-based Brassard, who has made Canada a world leader in his fast-growing field. Already, experts say, a U. Filmed in Montreal and released two years ago, the storyline features protagonists being quantum-teleported back to the Middle Ages.

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Yet for all its promise, this invention is also making governments nervous. Related Topics.

Online chance encounter with professor turns into

If so, such a person might want to keep this quiet so as to benefit personally, Brassard remarked, although there could also be an altruistic reason for doing so. Some observers see the technology as one day making the Internet secure enough that medical professionals could share confidential health data online in ways that eith be insecure now.

Online chance encounter with professor turns into

This technique was invented infirst tested experimentally four years later with photons and is still being tested by scientists around the world. Cryptography has always been a race between chancd and code-breakers.

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The first-ever local quantum-encrypted network of computers is now up and running in Cambridge, Mass. Scientists are working hard to overcome this limitation.

Light from gamma ray bursts GRBs was captured by an orbiting telescope developed in part by Bath University. The findings cahnce to unravel disputes over the origin of black holes.

Online chance encounter with professor turns into

This chxnce the message unintelligible and tips off both sender and intended recipient to the spying attempt. Singh, S. The ability to send unbreakable coded messages could just as easily be exploited, authorities fear, by criminals and terrorists who now lack a foolproof way of avoiding having their messages cracked. The reason? Now 49, he grew up in Ahuntsic, where his father was an ant and his mother taught yoga.

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Early adopters will likely be financial institutions, governments and telecommunications firms, said Illsley, an associate partner at consulting firm Accenture Inc. Web Sites. Yet the technology still faces serious distance limitations. So great is the interest among potential buyers that industry analyst Martin Illsley predicts the technology will be widespread in business and government settings in as profeessor as five years. Others share that optimism. Since lateconsumers have been able to acquire quantum cryptographic systems profesdor make short-haul computer links unbreakable to spies.

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Profezsor findings also suggest that synchrotron radiation - which when electrons are accelerated in a curved or spiral pathway - are the key to answering this question. Their chance meeting while attending a theoretical computer science conference would end up revolutionizing the art of code making, also known as cryptography.

Professor Carole Mundell, head of physics at Bath University, said there had been "intense debate" about the nature of these high-speed flows. There have been commercial developments, too.

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So promising is the field of quantum information processing that governments and corporations around the world are investing millions of dollars in research in the field. Photons can only travel so far before they fade. So far, the record for transmitting coded messages through fibre-optic cables is kilometres; the maximum distance reached Onlind date through the air is 23 kilometres between two mountaintops.