Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stochastic Variational Approach to Small Atoms and Molecules Coupled to
  Quantum Field Modes   In this work, we present a stochastic variational calculation (SVM) of
energies and wave functions of few particle systems coupled to quantum fields
in cavity QED. The light-matter coupled system is described by the Pauli-Fierz
Hamiltonian. The spatial wave function and the photon spaces are optimized by a
random selection process. Examples for a two-dimensional trion and confined
electrons as well as for the He atom and the Hydrogen molecule are presented
showing that the light-matter coupling drastically changes the electronic
states.

24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
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The categories of this paper are: eess
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: q-fin
21
The categories of this paper are: adap-org