Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The inverse problem for Schwinger pair production   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.

8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat