Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical dipole force on ladder-like three-level atomic systems driven by
  chirped few-cycle-pulse laser fields   We report a study on the optical dipole force in a ladder like three level
atomic systems in the context of coherent population transfer with the chirped
few-cycle-pulse laser fields. The phenomenon of coherent population transfer is
investigated by numerically solving the appropriate density matrix equations
beyond the rotating wave approximation. On the other hand, optical dipole force
is calculated by numerically solving the force equation and density matrix
equations self-consistently. By analysing the centre-of-mass motion, it is
shown that the optical dipole force with chirped pulses may be used for
focusing and defocusing of atoms in an atomic beam similar to the near or
non-resonant optical dipole force. Moreover, the robustness of the population
transfer against the variation of the pulse parameters and the effect of the
variation of the Rabi frequencies and the chirp rates on the optical dipole
force are also investigated. The proposed scheme may open new perspectives in
the focusing and de-focusing of atoms and molecules in an atomic beam, since
this scheme mitigates the demand for the generation of transform-limited pulse
laser fields at arbitrary frequencies.

9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess