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B Casimir effect, energy conservation

  1. Nov 28, 2017 #1
    I was reading some articles about Casimir effect. It turns out that some virtual particles are created and suddenly disappears amd that these particles can exert a pressure on the plates. It seems that this creation breaks energy conservation law, but it cannot be.I would like to know which system provides the energy to actually create these particles.
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  3. Nov 28, 2017 #2

    Vanadium 50

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    Why doesn't having two plates connected by a spring violate energy conservation?
  4. Nov 28, 2017 #3


    Staff: Mentor

    Virtual particles do not actually exist - its one of a number of myths of QM:

    This is a beginner level thread, but explaining what the Casimir Force really is, is an advanced topic. I will tell you the answer then refer you to advanced papers so you understand I am not just making this up. Its really just a relativistic Van der Waals force. You probably learned about Van der Waals forces in your chemistry class at HS - that's all that's really going on. Now for the papers justifying it:

    And from the person that wrote the myths and facts paper I gave a link to:

  5. Nov 29, 2017 #4


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    The Casimir force is just a collective effect of electromagnetic forces between charges that constitute atoms of which the Casimir plates are made. The electromagnetic force, of course, does not violate energy conservation.

    For more details see also https://www.physicsforums.com/threa...vacuum-energy-and-a-bit-of-relativity.882958/
    Last edited: Nov 29, 2017
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