Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ultracold atom interferometry in space   Bose-Einstein condensates (BECs) in free fall constitute a promising source
for space-borne matter-wave interferometry. Indeed, BECs enjoy a slowly
expanding wave function, display a large spatial coherence and can be
engineered and probed by optical techniques. On a sounding rocket, we explore
matter-wave fringes of multiple spinor components of a BEC released in free
fall employing light-pulses to drive Bragg processes and induce phase
imprinting. The prevailing microgravity played a crucial role in the
observation of these interferences which not only reveal the spatial coherence
of the condensates but also allow us to measure differential forces. Our work
establishes matter-wave interferometry in space with future applications in
fundamental physics, navigation and Earth observation.

19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int