Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ladder of Loschmidt anomalies in the deep strong-coupling regime of a
  qubit-oscillator system   We uncover a remarkably regular array of singularity-like structures within
the deep strong-coupling limit of qubit-oscillator (e.g. light-matter) systems
described by the quantum Rabi model, as a function of time and coupling
strength. These non-analytic anomalies in the Loschmidt amplitude (echoes)
suggest the existence of new forms of dynamical phase transition within this
deep strong-coupling regime. The key feature whereby the initial state
collapses into orthogonal states at select values of the interaction strength
and select times, may be used to enhance - or attack - quantum information
processing or computation schemes that rely on removing - or retaining - a
given quantum state.

12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys