Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Towards a measurement of the effective gauge field and the Born-Huang
  potential with atoms in chip traps   We study magnetic traps with very high trap frequencies where the spin is
coupled to the motion of the atom. This allows us to investigate how the
Born-Oppenheimer approximation fails and how effective magnetic and electric
fields appear as the consequence of the non-adiabatic dynamics. The results are
based on exact numerical diagonalization of the full Hamiltonian describing the
coupling between the internal and external degrees of freedom. The position in
energy and the decay rate of the trapping states correspond to the imaginary
part of the resonances of this Hamiltonian and are computed using the complex
rotation method.

6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
2
The categories of this paper are: math