Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Shockwave Communication   We present a scheme to produce shockwaves in quantum fields by means of
pretimed emitters. We find that by suitably pre-entangeling the emitters, the
shockwave's energy density can be locally modulated and amplified. When the
large amplitudes in such a shockwave are used for communication, the channel
capacity depends not only on the signal-to-noise ratio but also on the effect
that the entanglement of the emitters has on the correlations in the signal and
in the quantum noise at the receiver. As a consequence, by choosing the
entanglement of the emitters, the flow of information in the shockwave can be
modulated and spatially shaped to some extent independently of the flow of
energy. We also find that there exists a finite optimal strength of the
coupling between the receiver and the quantum field which optimizes the channel
capacity by optimizing the tradeoff between sensitivity to the signal and
sensitivity to the coupling-induced quantum noise.

9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con