Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Implementation of multidimensional quantum walks using linear optics and
  classical light   Classical optics can be used to efficiently implement certain quantum
information processing tasks with a high degree of control, for example,
one-dimensional quantum walks through the space of orbital angular momentum of
light directed by its polarization. To explore the potential of quantum
information processing with classical light, we here suggest a method to
realize d-dimensional quantum walks with classical optics---an important step
towards robust implementation of certain quantum algorithms. In this scheme,
different degrees of freedom of light, such as frequency, orbital angular
momentum, and time bins, represent different directions for the walker while
the coin to decide which direction the walker takes is realized by employing
the polarization combined with different light paths.

1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math