Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonlinearity-induced localization in a periodically-driven semi-discrete
  system   We demonstrate that nonlinearity plays a constructive role in supporting the
robustness of dynamical localization in a model which is discrete, in one
dimension and continuous in the orthogonal one. In the linear regime,
time-periodic modulation of the gradient strength along the discrete axis leads
to the usual rapid spread of an initially confined wave packet. Addition of the
cubic nonlinearity makes the dynamics drastically different, inducing robust
localization of moving wave packets. Similar nonlinearity-induced effects are
also produced by combinations of static and oscillating linear potentials. The
predicted nonlinearity-induced dynamical localization can be realized in
photonic lattices and Bose-Einstein condensates.

12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat