Fermionic α-vacua
Physical Review D - Particles, Fields, Gravitation and Cosmology, ISSN: 1550-2368, Vol: 71, Issue: 2
2005
- 16Citations
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Metrics Details
- Citations16
- Citation Indexes16
- 16
- CrossRef8
Article Description
A spin 1/2 particle propagating in a de Sitter background has a one parameter family of states which transform covariantly under the isometry group of the background. These states are the fermionic analogues of the α-vacua for a scalar field. We shall show how using a point-source propagator for a fermion in an α-state produces divergent perturbative corrections. These corrections cannot be used to cancel similar divergences arising from scalar fields in bosonic α-vacua since they have an incompatible dependence on the external momenta. The theory can be regularized by modifying the propagator to include an antipodal source. © 2005 The American Physical Society.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84927701214&origin=inward; http://dx.doi.org/10.1103/physrevd.71.024002; https://link.aps.org/doi/10.1103/PhysRevD.71.024002; http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevD.71.024002/fulltext; http://link.aps.org/article/10.1103/PhysRevD.71.024002
American Physical Society (APS)
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