Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Testing single-photon wave packets by Hong-Ou-Mandel interference   We discuss characterization of single-photon wave packets by measuring
Hong-Ou-Mandel interference with a weak coherent pulse. A complete multimode
calculation is presented and effects of multiphoton terms in the coherent field
as well as the impact of source and detection imperfections are discussed.

14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat