Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evanescent Gravitational Waves   We describe the properties of evanescent gravitational waves (EGWs)---wave
solutions of Einstein equations which decay exponentially in some direction
while propagating in another. Evanescent waves are well-known in acoustics and
optics and have recently received much attention due to their extraordinary
properties such as their transverse spin and spin-momentum locking. We show
that EGWs possess similarly remarkable properties, carrying transverse spin
angular momenta and driving freely falling test masses along in elliptical
trajectories. Hence, test masses on a plane transverse to the direction of
propagation exhibit correlated vector and scalar-like
deformation---correlations which can be used to distinguish it from modified
gravity. We demonstrate that EGWs are present and dominant in the vicinity of
sub-wavelength sources such as orbiting binaries.

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The categories of this paper are: solv-int
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The categories of this paper are: supr-con
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-ex
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The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin
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The categories of this paper are: eess
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The categories of this paper are: ao-sci
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The categories of this paper are: alg-geom