Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Integrated photonic 3D waveguide arrays for quantum random walks on a
  circle   Quantum random walks (QRWs) can be used to perform both quantum simulations
and quantum algorithms. In order to exploit this potential, quantum walks on
different types of graphs must be physically implemented. To this end we
design, model and experimentally fabricate, using the femtosecond laser
direct-write technique, a 3D tubular waveguide array within glass to implement
a photonic quantum walk on a circle. The boundary conditions of a QRW on a
circle naturally suggests a 3D waveguide implementation - allowing much simpler
device design than what could be achieved using a 2D waveguide architecture. We
show that, in some cases, three-dimensional photonic circuits can be more
suited to the simulation of complex quantum phenomena.

24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn