http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- High-profile websites are constantly under threat from hackers attempting to paralyse their websites but new research could make such attacks computationally impossible. This research will be one of the topics discussed at a major international conference on the theory and application of cryptology and information security in Japan this week. http://www.physorg.com/news179400475.html Technology Mon, 07 Dec 2009 10:00:02 EST news179400475 (PhysOrg.com) -- Even well-defended computers can leak shocking amounts of private data. MIT researchers seek out exotic attacks in order to shut them down. http://www.physorg.com/news176107396.html Technology Fri, 30 Oct 2009 08:10:01 EST news176107396 In the 1995 Halloween episode of The Simpsons, Homer Simpson finds a portal to the mysterious Third Dimension behind a bookcase, and desperate to escape his in-laws, he plunges through. He finds himself wandering across a dark surface etched with green gridlines and strewn with geometric shapes, above which hover strange equations. One of these is the deceptively simple assertion that P = NP. http://www.physorg.com/news176037013.html Technology Thu, 29 Oct 2009 12:10:40 EST news176037013 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. The project is reported in Volume 54, Issue 17 (September, 2009) of the Chinese Science Bulletin authored by Fang-xing Xu et al. http://www.physorg.com/news174891921.html Physics Fri, 16 Oct 2009 06:06:41 EST news174891921 (PhysOrg.com) -- In recent years, quantum computers have lost some of their luster. In the 1990s, it seemed that they might be able to solve a class of difficult but common problems - the so-called NP-complete problems - exponentially faster than classical computers. Now, it seems that they probably can't. In fact, until this week, the only common calculation where quantum computation promised exponential gains was the factoring of large numbers, which isn't that useful outside cryptography. http://www.physorg.com/news174286879.html Physics Fri, 09 Oct 2009 06:01:53 EST news174286879 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. http://www.physorg.com/news174143570.html Physics Wed, 07 Oct 2009 14:13:42 EST news174143570 What if you could send an e-mail to a co-worker, text a friend or post something on Facebook confident that it would eventually self-destruct? http://www.physorg.com/news173556803.html Technology Wed, 30 Sep 2009 21:00:04 EST news173556803 (PhysOrg.com) -- For the first time, physicists have experimentally demonstrated a four-qubit bound-entangled state - a peculiar form of entanglement that cannot be distilled (optimized) by the usual means. However, the scientists have found a novel method for distilling the entanglement by working with two qubits at a time. As the researchers explain, the special properties of bound entanglement could make it a useful quantum resource for new multiparty communication and secret sharing schemes, and the results could also contribute to a deeper understanding of the foundations of quantum mechanics. http://www.physorg.com/news173517599.html Physics Wed, 30 Sep 2009 10:00:01 EST news173517599 In what may prove to be a major development for scientists in fields ranging from forensics to quantum communications, researchers at the National Institute of Standards and Technology have developed a new, highly sensitive, low-cost technique for measuring light in the near-infrared range. http://www.physorg.com/news170516085.html Physics Wed, 26 Aug 2009 15:10:01 EST news170516085 (PhysOrg.com) -- Quantum key distribution (QKD) could be the next commercial success of quantum physics, and a recent study has taken the field a step closer to this reality. Researchers from the University of Geneva in Switzerland and Corning Incorporated in New York have demonstrated a new QKD prototype that can distribute quantum keys over a distance of 250 km in the lab, improving upon the previous record of 200 km. The scientists hope that the achievement will lead to the goal of distributing quantum keys over intercity distances of 300 km in the near future. http://www.physorg.com/news167390366.html Physics Tue, 21 Jul 2009 10:19:59 EST news167390366 What are the chances of a nuclear world war? What is the risk of a nuclear attack on United States soil? The risk of a child born today suffering an early death due to nuclear war is at least 10 percent, according to Martin Hellman, a tall, thin and talkative Stanford Professor Emeritus in Engineering. http://www.physorg.com/news167327145.html Other Sciences Mon, 20 Jul 2009 16:46:22 EST news167327145 IBM Research - Haifa has developed software that more efficiently and effectively hides sensitive or personal information that might otherwise appear on the computer screens of unauthorized personnel. It could prove particularly useful for security conscious fields such as healthcare, insurance, government or financial services. http://www.physorg.com/news166374646.html Technology Thu, 09 Jul 2009 16:20:04 EST news166374646 (PhysOrg.com) -- Dartmouth researchers who were pioneers in Public Key Infrastructure (PKI) - a system that secures and authenticates computer communications - are now playing leading roles establishing Internet standards and guidelines for security. http://www.physorg.com/news166192419.html Technology Tue, 07 Jul 2009 13:34:14 EST news166192419 Researchers from across Europe have united to build the largest quantum key distribution network ever built. The efforts of 41 research and industrial organisations were realised as secure, quantum encrypted information was sent over an eight node, mesh network. http://www.physorg.com/news165736188.html Physics Thu, 02 Jul 2009 06:50:19 EST news165736188 Miniature devices for trapping ions (electrically charged atoms) are common components in atomic clocks and quantum computing research. Now, a novel ion trap geometry demonstrated at the National Institute of Standards and Technology could usher in a new generation of applications because the device holds promise as a stylus for sensing very small forces or as an interface for efficient transfer of individual light particles for quantum communications. http://www.physorg.com/news165668548.html Physics Wed, 01 Jul 2009 12:02:59 EST news165668548