Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entangled states of light   These notes are more or less a faithful representation of my talk at the
Workshop on ``Quantum Coding and Quantum Computing'' held at the University of
Virginia. As such it is an introduction for non-physicists to the topics of the
quantum theory of light and entangled states of light. In particular, I discuss
the photon concept and what is really entangled in an entangled state of light
(it is not the photons). Moreover, I discuss an example that highlights the
peculiar behavior of entanglement in an infinite-dimensional Hilbert space.

31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th