Casimir force between planes as a boundary finite size effect

@article{Bajnok2005CasimirFB,
  title={Casimir force between planes as a boundary finite size effect},
  author={Zolt{\'a}n Bajnok and L{\'a}szl{\'o} Palla and G{\'a}bor Tak{\'a}cs},
  journal={Physical Review D},
  year={2005},
  volume={73},
  pages={065001}
}
The ground state energy of a boundary quantum field theory is derived in planar geometry in D+1-dimensional spacetime. It provides a universal expression for the Casimir energy which exhibits its dependence on the boundary conditions via the reflection amplitudes of the low energy particle excitations. We demonstrate the easy and straightforward applicability of the general expression by analyzing the free scalar field with Robin boundary condition and by rederiving the most important results… 
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15 Citations

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