Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Concept study and preliminary design of a cold atom interferometer for
  space gravity gradiometry   We study a space-based gravity gradiometer based on cold atom interferometry
and its potential for the Earth's gravitational field mapping. The instrument
architecture has been proposed in [Carraz et al., Microgravity Science and
Technology 26, 139 (2014)] and enables high-sensitivity measurements of gravity
gradients by using atom interferometers in a differential accelerometer
configuration. We present the design of the instrument including its subsystems
and analyze the mission scenario, for which we derive the expected instrument
performances, the requirements on the sensor and its key subsystems, and the
expected impact on the recovery of the Earth gravity field.

33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con