বুধবার, ৮ ফেব্রুয়ারী, ২০১২

Higgs Signal Gains Strength

Let's see, do any of these require exotic particle theory?

Synchrotron light source? Uses good old maxwell equations to steer electron beams with magnetic fields to make x-ray radiation...

Super conducting wire? The most viable theory behind cooper pairing is QM electron-phonon interaction which doesn't need any exotic particle theory...

PET? That uses simple radioactive sugar (where glucose is fluoridated with radioactive fluorine-18) and the resulting gamma ray decays are imaged...

Not to say that standard-model exotic particle theory isn't interesting, or doesn't explain certain physical things or certain astrophysical phenomena, but unlike QM, theoretical work on exotic particles has yet to prove economically useful. Century old QM theory on the other hand has helped us design flash memory, lasers, GMR disk drive heads, IC lithographic equipment, and has proven useful for racetrack memory, spintronics, quantum dot memory and maybe some day (economical) quantum computers.

Perhaps the time will come for standard-model sub-atomic theory being a big economic payback, but it hasn't happened yet. This might have a lot to do with the fact that other than the standard Hadrons (proton, neutron), and the electron and photons, and practically invisible neutrino, we don't see much, if any, of the other ones except as cosmic radiation or inside particle accelerators, which means economically they are more of nuisance than something to exploit. Who knows, maybe the even the standard model is wrong and we won't see anything economically useful from this theory on exotic particles, but maybe its sucessor theory. We just don't know yet.

It's easy to overestimate the impact of new theories. I'll wager that most cars today are still designed mostly assuming newtonian dynamics, and even more primitively, they got to the moon with a very low precision value for pi. Someday theories prove their worth, just like QM so it's worth investing, but overstating the case isn't being intellectually honest.

To bring a more understandable analogy to the current audience. If you are a computer programmer, your boss may indirectly use Turing computability theory to claim that it isn't impossible for you to write a program to do what he wants it to do, and perhaps P~NP might be something in the back of your mind when you look for algorithms, but the latest computability theory about NP-intermediate set problems probably doesn't yet have any economic value to anyone (after all, they are still NP problems even if not NP-complete). Might be valueable some day, though...

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/Ymy5u3tJNTM/higgs-signal-gains-strength

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