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Practical Quantum Cryptography

Alien54 writes: "Saw this on Eureka Alert: A commercially available system for quantum key distribution and cryptography has been released by a spin-off company from the University of Geneva. The system has been tested over distances up to 70km (from Geneva to Lausanne) through standard optical fiber cables and connects to PCs via USB ports. Transmission rates of about 60 bits per seconds were achieved, sufficient for key distribution. You can see the original abstract here, which also has a link for download of the paper in PDF, Postscript, and other formats."

2 of 164 comments (clear)

  1. Next comes the mindset by thornist · · Score: 0, Troll

    Great. As practical applications of quantum physics become widespread (outside of silicon engineering plants) maybe the mindset shift accompanies it will really take root.

    Maybe writers like Frijof Capra, Danah Zohar and even to some extent Roger Penrose will become less hokey in the mainstream view.

    You only have to look around the world that is a product of mechanistic thinking - the simplistic cause and effect rationality of Bush's tyrades, the lack of dialectic thinking in politics in general to see that this shift is ripe in the making.

  2. Zen and the Art of Trolling by Anonymous Coward · · Score: -1, Troll

    Exploring the troll within one's self can be a confusing experience. First, one must recognize the term troll often is used to describe several different style of postings. It can be used in a general sense to describe crapflooding posts, flame-baiting posts, page-tweaking posts (PLP's and PWP's), and true trolls. After one makes the distinction that a more specific definition of "troll" exists, the curious mind must find its meaning.
    Is a troll simply a post that contradicts popular opinion? Is it a post that gathers many replies? Is it a post that argues a point that you don't really believe? Is it a post that argues for an opinion you don't even understand? Is it a post that is only meant to annoy a large number of people? Or is it a post that is purely intended to encourage real debate? There may be many other possibilities that I haven't considered yet, but these are the ones I can quantify.

    These all appear to be valid motives of the many veteran trolls. So, how to you become proficient at this art? Well the following is a quote I found etched within the inner chambers of a 1000 year old temple in Nepal. I share these publicly for the first time, here on Trollaxor.com.

    It seems one must have a well defined perception of their own beliefs, and then be able to dis-prove them all... in ones mind, build an undeniable proof of a fact, and then be able to prove it fiction... understand ones audience, their weaknesses, their strengths, what irritates them, what they believe as holy truth... one must be resourceful with their research on issues they don't completely understand, and be able to project confidence in the knowledge they find...

    One must become Tuan-chi Muho. Find your beliefs and remove your mind's limitation to only believing that single thought path, then understand all other possible thought paths... understanding the individual has the ability to choose any of these paths, but chooses not to limit one's thoughts by only exploring a single path. One must be able to take these insights and use them against their foes.

    Go forth now... and troll