REVIEW 3 cited by
Back-reaction on background fields: a coherent state approach
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
read the original abstract
There are many situations in which a strong electromagnetic field may be approximated as a fixed background. Going beyond this approximation, i.e. accounting for the back-reaction of quantum process on the field, is however challenging. Here we develop an approach to this problem which is a straightforward extension of background field methods. The approach follows from the observation that scattering in an on-shell background is equivalent to scattering between coherent states; we show that by deforming these states one can model back-reaction. Focussing on intense laser-matter interactions, we provide examples which model beam depletion and, furthermore, introduce an extremisation principle with which to determine the level of depletion in a given scattering process.
Forward citations
Cited by 3 Pith papers
-
Gravitational waves decay in vacuum
Coherent graviton states that make up classical gravitational waves decay into photon pairs at a rate enhanced by N squared, a purely quantum effect that yields tiny rates for binaries and first photon-injection bound...
-
Scattering and depletion in a flying focus from conformal transformations
Photon emission amplitudes in totally depleting flying focus beams equal a Gaussian average over momentum variables of the corresponding plane-wave amplitudes, obtained via conformal transformations of Volkov solutions.
-
Coherent-field QED transitions based on coherent-state boundary conditions
The fixed-background-field approximation of QED is re-expressed as full QED evaluated between asymptotic photon coherent states, with background time-dependence arising from picture choice rather than an explicitly ti...
Discussion (0). Continue with ORCID to comment.