Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Direct generation of a multi-transverse mode non-classical state of
  light   Quantum computation and communication protocols require quantum resources
which are in the continuous variable regime squeezed and/or quadrature
entangled optical modes. To perform more and more complex and robust protocols,
one needs sources that can produce in a controlled way highly multimode quantum
states of light. One possibility is to mix different single mode quantum
resources. Another is to directly use a multimode device, either in the spatial
or in the frequency domain. We present here the first experimental
demonstration of a device capable of producing simultanuously several squeezed
transverse modes of the same frequency and which is potentially scalable. We
show that this device, which is an Optical Parametric Oscillator using a
self-imaging cavity, produces a multimode quantum resource made of three
squeezed transverse modes.

2
The categories of this paper are: math
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph