Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Field-induced barrier transparency of Bloch waves in tight-binding
  lattices   A rectangular potential barrier for a Bloch particle in a tight-binding
lattice is shown to become fully transparent by the application of a strong ac
field with appropriate amplitude and frequency. Such a curious phenomenon bears
some connection with the field-induced barrier transparency effect known for
freely-moving particles scattered by an ac-driven rectangular barrier; however,
for a Bloch particle transparency is not related to a resonant tunnneling
process across the cycle-averaged oscillating potential barrier, as for the
freely-moving quantum particle. The phenomenon of field-induced transparency is
specifically discussed here for photonic transport in waveguide arrays and
demonstrated by full numerical simulations of the paraxial (Schr\"{o}dinger)
wave equation beyond the tight-binding approximation.

22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con