Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coherent Stimulated X-ray Raman Spectroscopy; Attosecond Extension of
  RIXS   Spontaneous and stimulated resonant inelastic X-ray Raman scattering signals
are calculated using the Keldysh-Schwinger closed-time path loop and expressed
as overlaps of Doorway and Window electron-hole wavepackets. These are recast
in terms of the one-particle Green's functions and expansion coefficients of
configuration interaction singles for valence excitations, which can be
obtained from standard electronic structure codes. Calculation for many-body
states of ground and core-excited system is avoided.

1
The categories of this paper are: cs
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn