Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Satellite-based quantum steering under the influence of spacetime
  curvature of the Earth   Spacetime curvature of the Earth deforms wavepackets of photons sent from the
Earth to satellites, thus influencing the quantum state of light. We show that
Gaussian steering of photon pairs, which are initially prepared in a two-mode
squeezed state, is affected by the curved spacetime background of the Earth. We
demonstrate that quantum steerability of the state increases for a specific
range of height $h$ and then gradually approaches a finite value with further
increasing height of the satellite's orbit. Comparing with the peak frequency
parameter, the Gaussian steering changes more for different squeezing
parameters, while the gravitational frequency effect leads to quantum steering
asymmetry between the photon pairs. In addition, we find that the influence of
spacetime curvature on the steering in the Kerr spacetime is very different
from the non-rotating case because special relativistic effects are involved.

21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex