Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Impact of Photon Entanglement on Local and Nonlocal Dispersion
  Cancellation   Recently the engineering of the entanglement for photon pairs generated
during the spontaneous parametric down conversion process (SPDC) can be
achieved via manipulation of pump wavelength behind a \c{hi}(2)-based type II
SPDC process [1]. Such effect is used in this paper for demonstration of
non-classical dispersion cancellation phenomenon in both local and nonlocal
detections, theoretically. The following results are analytically achieved: I)
For local detection, if narrow pump laser (highly entangled photons) are used,
the dispersive broadening cancelation is directly depends on the degree of
entanglement. The higher entanglement degree, the more compensation occurs. The
results indicate that by increasing the FWHM of the pump the impact of the
entanglement degree is decreased in such a way that for a pump with FWHM=4 nm
the entanglement has no effect on the broadening. Therefore, the dispersive
broadening is only depends on the temporal walk-off between generated photon
pairs and the pump. II) For nonlocal detection, it is also shown that
entanglement cancels the dispersive broadening if and only if each of the
generated paired photons propagate through dispersive material with identical
length with opposite group velocity sign.

1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin