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A new system can significantly lower the production costs costs of mass quantum key distribution (QKD) networks, which will make them available to a wider user audience. This will make it possible to use QDK in the regular fiber-optic cable infrastructure. The paper was published in Scientific Reports.

Many have heard about quantum key distribution (QKD), which is also sometimes referred to as quantum encryption. Today, this is one of the safest ways to encode information that can then be used by major banks, military and governmental organizations. In a QDK system, the information is transmitted by quantum radiation, which is extremely hard for eavesdroppers to intercept.

“As a rule, QKD uses a weak laser light with an average number of photons less than unity,” explains Eduard Samsonov, a research associate at ITMO’s Faculty of Photonics and Optical Information. “This light has fundamental special features, the so-called quantum effects that leave no chance for a third party to infiltrate the channel to read the information without being noticed.”

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With China appearing to flex its muscles in almost all of its territorial disputes, a new underwater dimension may emerge. Chinese submarines could be on a collision course with the Japanese Navy. Known as the Japanese Maritime Self-Defense Force (JMSDF), they possess one of the most potent anti-submarine capabilities of any Navy. In particular Japanese submarine technology is highly regarded. But there seems to be acceptance that they will have to beef up to meet the emerging threat from China. A newly published white paper hints at ways the JMSDF is responding.

The threat of Chinese submarine incursions is seen as very real. Last month, to track a submerged submarine near its waters, the JMSDF scrambled one of its helicopter carriers, two destroyers and several maritime patrol aircraft. Although Japan has not declared the nationality of the submarine, it is widely believed to have been Chinese.

According to a press release (in Japanese) the submarine was detected on June 18 northeast of Amami Oshima, which is one of the islands running between Japan and Taiwan. These islands are known as the first island chain and form a natural barrier between China and the Pacific. The submarine was tracked for several days.

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Is a process in nuclear physics in which the nucleus of an atom splits into two or more smaller nuclei as fission products, and usually some by-product particles. Hence, fission is a form of elemental transmutation. The by-products include free neutrons, photons usually in the form gamma rays, and other nuclear fragments such as beta particles and alpha particles. Fission of heavy elements is an exothermic reaction and can release substantial amounts of useful energy both as gamma rays and as kinetic energy of the fragments (heating the bulk material where fission takes place). Nuclear fission produces energy for nuclear power and to drive explosion of nuclear weapons.

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That in turn enables a massive software upgrade known as the “autonomy module,” a playbook of algorithms that tell the weapon how to respond to specific changes on the battlefield, whether that means the sighting of a new threat or the destruction of some of the collaborative weapons.

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Japan has been cleared by the US State Department to buy 105 Lockheed Martin F-35 Lightning II stealth fighters as part of a package worth an estimated $23.11 billion.

The potential F-35 deal is the second largest foreign military sale approved by Washington in history, behind a $29.4 billion sale of Boeing F-15SA fighters and associated weapons to Saudi Arabia in 2010.

Japan F-35 Mt Fuji hi-res

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ST. GEORGE — An invention that could lead to the end of gunpowder is not just an idea — it’s already been used in a real-world military mission.

Priced at $1 million, ZHeus 3 is not a gun; it’s a “platform” that has taken Harvester, a St. George-based inventor, 15 years to design. Harvester could not release his full name because he still has a commitment to national security.

The idea for this invention, along with an improved armor, began some 15 years ago when Harvester’s best friend died in his arms after being shot during an Air Force mission. The bullet shot straight through his friend’s bulletproof vest and kept going.

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