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Thread: Superfluid vacuum theory

  1. #1 Superfluid vacuum theory 
    Junior Member
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    Mar 2018
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    I have a question about the superfluid vacuum. So I read that it is possible in this theory for sound to propagate in the vacuum.
    Im going to put a comment from the Nasaspaceflight forum that intrigued me. Its comment number 65 by Rodal: https://forum.nasaspaceflight.com/in...topic=38996.60

    "There are several theories of a superfluid vacuum. These theories have a "speed of sound" of the vacuum superfluid equal to (in the simplest theories) or higher than the speed of light.

    The speed of sound in the superfluid vacuum can be associated with quasiparticles which are thus phonons: quanta of sound waves. The superfluid vacuum theories thus have "sound waves" in addition to "gravitational waves".

    One can think of the speed of sound of the vacuum as being associated with a (very large value) bulk modulus of elasticity (and density) of the superfluid vacuum, but these theories usually discuss the speed of sound (*) of the vacuum in terms of vacuum energy considerations and not specifically in terms of a bulk modulus of elasticity of the vacuum superfluid."


    Apparently, the sound waves in the superfluid vacuum are supported by the vacuum energy and travel at the speed of light (because of the high modulus of elasticity of the vacuum). Now, what symmetry would these phonons in the superfluid be associated with? Would they be gauge bosons too?

    Thank you.
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  2. #2  
    Junior Member
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    Mar 2018
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    I would really appreciate some help with this question. Thank you!
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