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On Thu, Apr 2, 2015 at 11:30 PM, <wabenbau@×××××.com> wrote: |
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> <wabenbau@×××××.com> wrote: |
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> |
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>> with the movement of particles. It is a phenomenon that results from |
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>> the quantum entanglement of e.g. two electrons and has to do with the |
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>> nonlocality of such phenomenons. When you measure the quantum |
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>> attributes of one of these two electrons you instantaneous influence |
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>> the quantum attributes of the other one, regardless of its distance. |
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> |
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> Correction: I meant photons and not electrons. Sorry for this. |
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> |
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|
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Since others have done a decent job explaining some of the basics |
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here, I'll just point out that quantum affects apply to all matter and |
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energy, not just photons. It just doesn't tend to be noticeable for |
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anything of significant size except in very unusual situations. |
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|
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Electrons are fundamental particles (as best we know) and are very |
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much subject to quantum effects. In particular the wavelike |
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characteristics of photons are responsible for behavior like the UV |
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absorbance of your suntan lotion, or the fact that just about anything |
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that conducts electricity well tends to look metallic/shiny even if it |
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doesn't contain something you'd consider metal. I remember the first |
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time somebody showed me a conductive polymer and marveling that it |
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looked like a little strip of metal-coated plastic that you might find |
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connecting two circuit boards (this was back in the 90s - conductive |
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polyers are a bit more mainstream now). |
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|
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In truth, the wavelike characteristics of electrons are important for |
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virtually all aspects of their behavior since they are so small, but |
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I'm just pointing out some manifestations that are more visible to the |
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naked eye. |
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I agree with the earlier comment that I doubt you'd ever try to run a |
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general-purpose operating system on a quantum computer. If they ever |
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became truly mainstream the most likely configuration would be as a |
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separate module that would be utilized for certain problems, much like |
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a DSP or a GPU or an FPGA often gets used today. They are |
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non-deterministic in nature (or are at least thought to be and might |
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as well be for practical purposes - I'm not convinced that anybody has |
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proven that quantum behavior is truly non-deterministic). Most |
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quantum algorithms would be paired with conventional computers. If a |
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quantum chip tells you that there is a 95% cumulative chance that |
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somebody's private key is one of these 50 candidates, that is probably |
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more than adequate since you can brute force 50 keys in a millisecond |
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and find the right one. They're going to tend to be used for needle |
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in a haystack problems where once you get rid of 99.999999999999% of |
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the haystack the problem is no longer difficult. |
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|
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-- |
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Rich |