Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unitary time-dependent superconvergent technique for pulse-driven
  quantum dynamics   We present a superconvergent Kolmogorov-Arnold-Moser type of perturbation
theory for time-dependent Hamiltonians. It is strictly unitary upon truncation
at an arbitrary order and not restricted to periodic or quasiperiodic
Hamiltonians. Moreover, for pulse-driven systems we construct explicitly the
KAM transformations involved in the iterative procedure. The technique is
illustrated on a two-level model perturbed by a pulsed interaction for which we
obtain convergence all the way from the sudden regime to the opposite adiabatic
regime.

29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ