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Could you hold a super string?

  1. Jun 16, 2003 #1
    Hello, this is my first post on the forum. I have merely one quetsion..... if one were to "hold" a superstring, that is, to prevent it from vibrating, what would happen?
     
  2. jcsd
  3. Jun 16, 2003 #2

    LURCH

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    I believe it would cease to exist. AIUI, superstrings are made of nothing other than their own vibration. At least, that's the most popular theory ATM.

    EDIT: Welcome to the Forums!
     
  4. Jun 16, 2003 #3

    jeff

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    String theory allows massless nonvibrating strings.
     
  5. Jun 17, 2003 #4

    LURCH

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    I have never heard that before. Not to hijack the Topic, but now I simply must know more.

    I thought string theory proposed that all of the properties that constitute "existance" i.e. mass, charge, spin, et al were caused by the vibration. If a superstring is not vibrating it ceases to have any properties, does it not? If it has no properties, how can it be said to exist?
     
  6. Jun 17, 2003 #5

    jeff

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    String mass and transformation properties under spacetime supersymmetry (i.e. "spin") have a dependence on vibrational degrees of freedom while yang-mills charges don't, they simply sit at the ends of open strings.

    The ground states of the R-sector (Ramond sector) of the unoriented type I open plus closed superstring theory, and the R-R sector in the type IIA and IIB superstring theories are massless string states that include no vibrational modes.

    There are also nonvibrating tachyonic states.
     
    Last edited: Jun 18, 2003
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