Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interference effects due to nuclear motion of the hydrogen molecule   We show that two-particle interferences can be used to probe the nuclear
motion in a doubly-excited hydrogen molecule. The dissociation of molecular
hydrogen by electron impact involves several decay channels, associated to
different molecular rotational states, which produce quantum interferences in
the detection of the atomic fragments. Thanks to the correlations between the
angular momentum and vibrational states of the molecule, the fragments arising
from each dissociation channel carry out a phase-shift which is a signature of
the molecule rotation. These phase-shifts, which cannot be observed in a
single-atom detection scheme, may be witnessed in realistic experimental
conditions in a time-of-flight coincidence measurement. We analyse the
interferences arising from the two lowest-energy rotational states of a
para-hydrogen molecule. Our result shows the relevance of two-fragments
correlations to track the molecular rotation.

25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th