Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Characterization of a Simultaneous Dual-Species Atom Interferometer for
  a Quantum Test of the Weak Equivalence Principle   We present here the performance of a simultaneous dual-species matter-wave
accelerometer for measuring the differential acceleration between two different
atomic species ($^{87}$Rb and $^{85}$Rb). We study the expression and the
extraction of the differential phase from the interferometer output. The
differential accelerometer reaches a short-term sensitivity of
$1.23\times10^{-7}g/\sqrt{Hz}$ limited by the detection noise and a resolution
of $2\times10^{-9}g$ after 11000 s, the highest reported thus far with a
dual-species atom interferometer to our knowledge. Thanks to the simultaneous
measurement, such resolution levels can still be achieved even with vibration
levels up to $3\times10^{-3}g$, corresponding to a common-mode vibration noise
rejection ratio of 94 dB (rejection factor of 50 000). These results prove the
ability of such atom sensors for realizing a quantum based test of the weak
equivalence principle (WEP) at a level of $\eta\sim10^{-9}$ even with high
vibration levels and a compact sensor.

34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio