Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-dimension experimental tomography of a path-encoded photon
  quantum-state   Quantum information protocols often rely on tomographic techniques to
determine the state of the system. A popular method of encoding information is
on the different paths a photon may take, for example, parallel waveguides in
integrated optics. However, reconstruction of states encoded onto a large
number of paths is often prohibitively resource intensive and requires
complicated experimental setups. Addressing this, we present a simple method
for determining the state of a photon in a superposition of d paths using a
rotating one-dimensional optical Fourier Transform. We establish the theory and
experimentally demonstrate the technique by measuring a wide variety of
six-dimensional density matrices. The average fidelity of these with the
expected state is as high as 0.9852 +/- 0.0008. This performance is comparable
or exceeds established tomographic methods for other types of systems.

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The categories of this paper are: nucl-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
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The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
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The categories of this paper are: q-fin