Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exciton-coherence generation through diabatic and adiabatic dynamics of
  Floquet state   Floquet engineering of electronic systems is a promising way of controlling
quantum material properties on an ultrafast time scale. So far, the energy
structure of Floquet states in solids has been observed through time and
angle-resolved photoelectron spectroscopy or pump-probe measurement techniques.
However, the dynamical aspects of the photon-dressed states under ultrashort
pulse driving have not been explored yet. Their dynamics become highly
sensitive to the envelope of the driving field when the light-matter
interaction enters non-perturbative regime, and thus, understanding of them is
crucial for ultrafast manipulation of quantum state. Here, we observed coherent
exciton emissions under intense and non-resonant mid-infrared fields in
monolayer WSe2 at room temperature, which is unexpected in perturbative
nonlinear optics. Together with numerical calculations, our measurements
revealed that the coherent exciton emission reflects the diabatic and adiabatic
dynamics of Floquet states. Our results provide a new approach to probing the
dynamics of the Floquet state and lead to control of quantum materials through
pulse shaping of the driving field.

32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess