The inverse problem for Schwinger pair production

Hebenstreit, Florian (2016). The inverse problem for Schwinger pair production. Physics letters. B, 753, pp. 336-340. Elsevier 10.1016/j.physletb.2015.12.049

[img]
Preview
Text
1-s2.0-S0370269315009971-main.pdf - Published Version
Available under License Creative Commons: Attribution (CC-BY).

Download (786kB) | Preview

The production of electron–positron pairs in time-dependent electric fields (Schwinger mechanism) depends non-linearly on the applied field profile. Accordingly, the resulting momentum spectrum is extremely sensitive to small variations of the field parameters. Owing to this non-linear dependence it is so far unpredictable how to choose a field configuration such that a predetermined momentum distribution is generated. We show that quantum kinetic theory along with optimal control theory can be used to approximately solve this inverse problem for Schwinger pair production. We exemplify this by studying the superposition of a small number of harmonic components resulting in predetermined signatures in the asymptotic momentum spectrum. In the long run, our results could facilitate the observation of this yet unobserved pair production mechanism in quantum electrodynamics by providing suggestions for tailored field configurations.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Hebenstreit, Florian

Subjects:

500 Science > 530 Physics

ISSN:

0370-2693

Publisher:

Elsevier

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

16 Feb 2016 16:41

Last Modified:

16 Feb 2016 16:41

Publisher DOI:

10.1016/j.physletb.2015.12.049

ArXiv ID:

1509.08693v2

BORIS DOI:

10.7892/boris.75462

URI:

https://boris.unibe.ch/id/eprint/75462

Actions (login required)

Edit item Edit item
Provide Feedback