Is zero-point energy physical? A toy model for Casimir-like effect

@article{Nikolic2017IsZE,
  title={Is zero-point energy physical? A toy model for Casimir-like effect},
  author={H. Nikolic},
  journal={Annals of Physics},
  year={2017},
  volume={383},
  pages={181-195}
}
  • H. Nikolic
  • Published 2017
  • Physics
  • Annals of Physics
  • Abstract Zero-point energy is generally known to be unphysical. Casimir effect, however, is often presented as a counterexample, giving rise to a conceptual confusion. To resolve the confusion we study foundational aspects of Casimir effect at a qualitative level, but also at a quantitative level within a simple toy model with only 3 degrees of freedom. In particular, we point out that Casimir vacuum is not a state without photons, and not a ground state for a Hamiltonian that can describe… CONTINUE READING
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