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A String Theory and Particles

  1. Dec 28, 2018 #1
    I've heard in a general way that string theory can describe the properties of the fundamental particles through standing waves or resonances of strings. Is this in fact the case, and if so, can someone provide a link to the relevant research papers?
  2. jcsd
  3. Dec 28, 2018 #2


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    Here at PF we do encourage some activity from posters; a simple google search, for instance. If you then ask more specific questions we can provide specific help. Asking for 'Relevant research papers' is a bit moot :rolleyes: .
  4. Jan 2, 2019 #3
    Yes, that's the case. In string theory it suggests that one dimensional vibrating string produces fundamental particle. Different pattern in vibration produces different pattern. Firstly it was suggested 1d strings but now replacing string there is 2 dimensional branes which are like loop structure. According to string theory, we need 10 dimensions for fermionic strings and more than 20 dimension for bosonic string to exist. But now from M theory we all need is 10 dimensions for these branes to exist. You can view this in Wikipedia..
  5. Jan 2, 2019 #4


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    No resonance or higher mode of a string is expected to correspond to a standard model particle.

    What happens is that the fundamental particles we know will correspond to zero modes in the 10D theory, or equivalently to particles produced in some extreme limit of the string tension. So the particles we know are actually "elastic rods" more than "strings".
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