5th state of matter

  1. what is the 5th state of matter
    can aybody explain it
     
  2. jcsd
  3. You must know the 3 states of matter: liquid,solid,gaz, but at hight temerature, you can also find a state called plasma(electrons are free)

    The fifth state of matter you're talking about might be the QGP (Quarks and GLuon PLasma).

    Scientists believe that QGP is a state where quarks are free (T = 170 Mev and epsilon = 3 GeV per fm^3), as during the first second of our universe.

    Many experiments are runing now to prove its existence in Berkeley and Geneva...

    I hope it's answers your question ...

    Regards
     
  4. Hurkyl

    Hurkyl 16,090
    Staff Emeritus
    Science Advisor
    Gold Member

    He might be talking about Bose-Einstein condensate.
     
  5. I did a 2nd year undergrad uni course in statistical mechanics this semester, and we touched on Bose-Einstein condensation, just by deriving certain temperatures etc.
    We were told that the first experimental evidence of B-E condensation was in 1995 where Rubidium atoms were cooled to something like 4x10^-3 K, by using "laser traps"
    How does this work?
     
  6. Well, basicly you have lasers that hit a group of atoms from all sides and inhibit their movement, effectively dropping their temperature.
     
  7. Actually, it's much colder- something like [tex]10^{-7} K[/tex] is more typical.

    As for how they did it, take a look at this site. which provides an easy introduction.
     
  8. dextercioby

    dextercioby 12,303
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    Homework Helper

    My opinion is that QGP is not anything different than ordinary Fermions+Photons plasma.You just need higher temperatures and energies go get the former.If such a plasma is obtained,then it should be regarded as a confirmation of the Standard Model,just like more "normal" plasma is.
     
  9. Hi :biggrin:

    I'm agree with you, dextercioby, when you sau that the discovery of QGP will confirm the power of the standart model, but I don't believe it's like a normal plasma.

    In QGP, quarks are free, and calculations with lattice QCD show us that there where a phase transition (sign of new state of matter) during the creation of such a plasma.

    See you
     
  10. is there anything called the supercool state of matter or something..something that happens when water is 0 deg celcius in kelvin temp..?
     
  11. Ohhh, you are referring to a supercooled liquid. That's still the liquid phase. The only issue is, it exists below the freezing temperature and it is unstable. A small center of crystalization (like a grain of sand or another impurity) will cause the whole water to freeze.
     
  12. I thought that Quark-Gluon Plasma was the 7th state?
    Isn't the Einstein-Bose condensate the 5th?
    I know that water can occasionally get to be -10 degrees Celsius without freezing.
    cheers, BT
     
  13. There was a nice program on Nova (pbs channel) channel on TV. that covered what you are asking about.

    This program discussed a substrate that is formed when elements are cooled to near zero degree K. The particles do not act as separate elements but seem to form a common matter that acts unlike the individual element.

    The program mentioned California Berkley as being the 1st site to produce it. They referred to it as the Bose-Einstein condensate (BEC)

    here is a link that I found http://www.pbs.org/wgbh/nova/physics/ultracold-atoms.html

    I found this to be really interesting as my kids science books do not even mention this 5th matter.
     
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