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Thread: Doubly Special Relativity

  1. #1 Doubly Special Relativity 
    Forum Senior TheObserver's Avatar
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    I heard Lee Smolin mention the idea of doubly special relativity in a talk I watched recently. Basically he wanted to introduce a third postulate in SR about an invariance in the planck scale under lorentz contractions if I understood correctly. I admit I find this very intriguing. Does anybody here have any thoughts on this? Or have a good resource better than the first few google search results on this topic?


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  3. #2  
    Moderator Moderator Markus Hanke's Avatar
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    I agree that DSR is an interesting proposal, very much like Scale Relativity. How about this paper for starters ( sorry, don't know what your level of maths knowledge is ) :

    http://arxiv.org/pdf/gr-qc/0207085v1.pdf


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  4. #3  
    Forum Senior TheObserver's Avatar
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    Perfect, thank you!! Its JUST over my head maths wise. For example, I understand group theory fairly decently, but not really representation theory. So I have a vague idea of whats going on throughout but I can't follow it fully. I will keep it around though.
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  5. #4  
    Time Lord
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    You're talking about the plank constant remaining the same at all speeds? That makes sense, because your perception of (kinetic) energy would change if your perception of velocity changes.

    If I understand the constant right, it's basically the relationship between frequency of a photon and the energy of a photon. Does anyone know if it has other applications? I've heard it described as a unit of measure also, but I'm not sure how that works.



    E = Energy of the photon

    v = Frequency of the photon

    h = Plank's Constant
    Some clocks are only right twice a day, but they are still right when they are right.
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  6. #5  
    Forum Senior TheObserver's Avatar
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    Not Plancks constant, but the actual planck length being invariant.
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