Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Double diffraction in an atomic gravimeter   We demonstrate the realization of a new scheme for cold atom gravimetry based
on the use of double diffraction beamsplitters recently demonstrated in
\cite{Leveque}, where the use of two retro-reflected Raman beams allows
symmetric diffraction in $\pm \hbar k_{eff}$ momenta. Though in principle
restricted to the case of zero Doppler shift, for which the two pairs of Raman
beams are simultaneously resonant, we demonstrate that such diffraction pulses
can remain efficient on atoms with non zero velocity, such as in a gravimeter,
when modulating the frequency of one of the two Raman laser sources. We use
such pulses to realize an interferometer insensitive to laser phase noise and
some of the dominant systematics. This reduces the technical requirements and
would allow the realization of a simple atomic gravimeter. We demonstrate a
sensitivity of $1.2\times10^{-7}g$ per shot.

28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol