Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement amplification between superposed detectors in flat and
  curved spacetimes   We consider an entanglement harvesting protocol between two Unruh-deWitt
detectors in quantum superpositions of static trajectories in the static de
Sitter and thermal Minkowski spacetimes. We demonstrate for the first time that
the spatial superposition of each detector's path allows entanglement to be
harvested from the quantum field in regimes where it would be otherwise
impossible for detectors on classical trajectories. Surprisingly, for detectors
on sufficiently delocalised trajectories in a thermal bath, the amount of
harvested entanglement grows with the temperature of the field, violating a
no-go theorem derived by Simidzija et. al. (Phys. Rev. D 98, 085007). We also
discover interesting effects for mutual information harvesting, which depends
sensitively on the nonlocal correlations between the superposed trajectories
between the paths of the respective detectors.

23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol