Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Echoing the extra dimension   We study the propagating gravitational waves as a tool to probe the extra
dimensions. In the set-up with one compact extra dimension and
non-gravitational physics resigning on the 4-dimensional subspace (brane) of
5-dimensional spacetime we find the Green's function describing the propagation
of 5-dimensional signal along the brane. The Green's function has a form of the
sum of contributions from large number of images due to the compactness of the
fifth dimension. Additionally, a peculiar feature of the causal wave
propagation in five dimensions (making a five-dimensional spacetime very much
different from the familiar four-dimensional case) is that the entire region
inside the past light-cone contributes to the signal at the observation point.
The 4-dimensional propagation law is nevertheless reproduced at large (compared
to the size of extra dimension) intervals from the source as a superposition of
signals from large number of images. The fifth dimension however shows up in
the form of corrections to the purely 4-dimensional picture. We find three
interesting effects: a tail effect for a signal of finite duration, screening
at the forefront of this signal and a frequency-dependent amplification for a
periodic signal. We discuss implications of these effects in the gravitational
wave astronomy and estimate the sensitivity of gravitational antenna needed for
detecting the extra dimension.

23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph