A note on the conjectured breakdown of QED perturbation theory in strong fields
dc.contributor.author | Ilderton, A | en |
dc.date.accessioned | 2019-04-04T10:58:06Z | |
dc.date.available | 2019-04-04T10:58:06Z | |
dc.date.issued | 2019-04-03 | en |
dc.identifier.issn | 0556-2821 | en |
dc.identifier.uri | http://hdl.handle.net/10026.1/13632 | |
dc.description | 8 pages, 3 pdf figures | en |
dc.description.abstract |
Strong background fields require a non-perturbative treatment, which is afforded in QED by the Furry expansion of scattering amplitudes. It has been conjectured that this expansion breaks down for sufficiently strong fields, based on the asymptotic growth of loop corrections with increasing "quantum nonlinearity", essentially the product of field strength and particle energy. However, calculations to date have assumed that the background is constant. We show here, using general plane waves of finite duration, that observables at high quantum nonlinearity scale differently depending on whether intensity or energy is large. We find that, at high energy, loop contributions to observables tend to fall with increasing quantum nonlinearity, rather than grow. | en |
dc.language.iso | en | en |
dc.publisher | American Physical Society | en |
dc.subject | hep-ph | en |
dc.subject | hep-ph | en |
dc.subject | hep-th | en |
dc.title | A note on the conjectured breakdown of QED perturbation theory in strong fields | en |
dc.type | Journal Article | |
plymouth.author-url | http://arxiv.org/abs/1901.00317v1 | en |
plymouth.journal | Physical Review D, Particles and fields | en |
dc.identifier.doi | 10.1103/PhysRevD.99.085002 | en |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/EXTENDED UoA 10 - Mathematical Sciences | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA10 Mathematical Sciences | |
dcterms.dateAccepted | 2019-03-19 | en |
dc.rights.embargodate | 2019-04-06 | en |
dc.rights.embargoperiod | Not known | en |
rioxxterms.versionofrecord | 10.1103/PhysRevD.99.085002 | en |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | en |
rioxxterms.licenseref.startdate | 2019-04-03 | en |
rioxxterms.type | Journal Article/Review | en |