Matches in SemOpenAlex for { <https://semopenalex.org/work/W4313591153> ?p ?o ?g. }
- W4313591153 abstract "We extend previous work on the vacuum energy of a massless scalar field in the presence of singular potentials. We consider a single sphere defined by the so-called $ensuremath{delta}text{ensuremath{-}}{ensuremath{delta}}^{ensuremath{'}}$ interaction. Contrary to the Dirac $ensuremath{delta}$-potential, we find a nontrivial one-parameter family of potentials such that the regularization procedure gives an unambiguous result for the Casimir self-energy. The procedure employed is based on the zeta function regularization and the cancellation of the heat kernel coefficient ${a}_{2}$. The results obtained are in agreement with particular cases, such as the Dirac $ensuremath{delta}$ or Robin and Dirichlet boundary conditions." @default.
- W4313591153 created "2023-01-06" @default.
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- W4313591153 date "2023-01-04" @default.
- W4313591153 modified "2023-10-18" @default.
- W4313591153 title "Casimir self-energy of a <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:mi>δ</mml:mi><mml:mtext>−</mml:mtext><mml:msup><mml:mrow><mml:mi>δ</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math> sphere" @default.
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- W4313591153 doi "https://doi.org/10.1103/physrevd.107.025002" @default.
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