Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simulation of Slow Light with Electronics Circuits   We present an electronic circuit which simulates wave propagation in
dispersive media. The circuit is an array of phase shifter composed of
operational amplifiers and can be described with a discretized version of
one-dimensional wave equation for envelopes. The group velocity can be changed
both spatially and temporarily. It is used to emulate slow light or stopped
light, which has been realized in a medium with electromagnetically induced
transparency (EIT). The group-velocity control of optical pulses is expected to
be a useful tool in the field of quantum information and communication.

25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys