Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fluctuation-induced forces on an atom near a photonic topological
  material   We theoretically study the Casimir-Polder force on an atom in a arbitrary
initial state in a rather general electromagnetic environment wherein the
materials may have a nonreciprocal bianisotropic dispersive response. It is
shown that under the Markov approximation the force has resonant and
nonresonant contributions. We obtain explicit expressions for the optical force
both in terms of the system Green function and of the electromagnetic modes. We
apply the theory to the particular case wherein a two-level system interacts
with a topological gyrotropic material, showing that the nonreciprocity enables
exotic light-matter interactions and the opportunity to sculpt and tune the
Casimir-Polder forces on the nanoscale. With a quasi-static approximation, we
obtain a simple analytical expression for the optical force and unveil the
crucial role of surface plasmons in fluctuation induced forces. Finally, we
derive the Green function for a gyrotropic material half-space in terms of a
Sommerfeld integral.

22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th