Loop diagrams in boxes
(1982) In Physical Review D 26(2). p.415-428- Abstract
Methods for computing loop diagrams in confined scalar and gauge theories are developed. We construct propagators with different types of boundary conditions in boxes (rectangular cavities) using the method of image charges, which allows for a separation of the short-distance singularities. The techniques are illustrated by a calculation of the Casimir effect in a box using a covariant gauge, and of the energy shift of a photon in confined scalar QED. The relevance of such a calculation for a proposed model for the QCD vacuum is discussed.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/09900b69-e842-4b83-9505-a55a17351f7d
- author
- Peterson, C. LU ; Hansson, T. H. and Johnson, K.enneth
- publishing date
- 1982-01-01
- type
- Contribution to journal
- publication status
- published
- in
- Physical Review D
- volume
- 26
- issue
- 2
- pages
- 14 pages
- publisher
- American Physical Society
- external identifiers
-
- scopus:0042650027
- ISSN
- 0556-2821
- DOI
- 10.1103/PhysRevD.26.415
- language
- English
- LU publication?
- no
- id
- 09900b69-e842-4b83-9505-a55a17351f7d
- date added to LUP
- 2019-05-14 17:11:48
- date last changed
- 2021-06-13 04:44:31
@article{09900b69-e842-4b83-9505-a55a17351f7d, abstract = {{<p>Methods for computing loop diagrams in confined scalar and gauge theories are developed. We construct propagators with different types of boundary conditions in boxes (rectangular cavities) using the method of image charges, which allows for a separation of the short-distance singularities. The techniques are illustrated by a calculation of the Casimir effect in a box using a covariant gauge, and of the energy shift of a photon in confined scalar QED. The relevance of such a calculation for a proposed model for the QCD vacuum is discussed.</p>}}, author = {{Peterson, C. and Hansson, T. H. and Johnson, K.enneth}}, issn = {{0556-2821}}, language = {{eng}}, month = {{01}}, number = {{2}}, pages = {{415--428}}, publisher = {{American Physical Society}}, series = {{Physical Review D}}, title = {{Loop diagrams in boxes}}, url = {{http://dx.doi.org/10.1103/PhysRevD.26.415}}, doi = {{10.1103/PhysRevD.26.415}}, volume = {{26}}, year = {{1982}}, }