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The Casimir energy anomaly for a point interaction

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 نشر من قبل Davide Fermi
 تاريخ النشر 2019
  مجال البحث فيزياء
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 تأليف Davide Fermi




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The Casimir energy for a massless, neutral scalar field in presence of a point interaction is analyzed using a general zeta-regularization approach developed in earlier works. In addition to a regular bulk contribution, there arises an anomalous boundary term which is infinite despite renormalization. The intrinsic nature of this anomaly is briefly discussed.

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