Vacuum Polarization in a Zero-Width Potential: Self-Adjoint Extension

The effects of vacuum polarization associated with a massless scalar field near pointlike source with a zero-range potential in three spatial dimensions are analyzed. The “physical” approach consists in the usage of direct delta-potential as a model of pointlike interaction. We use the Perturbation...

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Bibliographic Details
Main Authors: Yuri V. Grats, Pavel Spirin
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Universe
Subjects:
Online Access:https://www.mdpi.com/2218-1997/7/5/127