Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical Casimir effect and state transfer in the ultrastrong coupling
  regime   The dynamical Casimir effect (DCE) manifests itself in the ultrastrong
matter-field coupling (USC) regime, as a consequence of the nonadiabatic change
of some parameters of a system. We show that the DCE is a fundamental
limitation for standard quantum protocols based on quantum Rabi oscillations,
implying that new schemes are required to implement high-fidelity ultrafast
quantum gates. Our results are illustrated by means of a paradigmatic quantum
communication protocol, i.e., quantum state transfer.

36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat