Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reply to ``Comment on `Inverse exciton series in the optical decay of an
  excitonic molecule' "   As a reply to the Comment by I.S. Gorban {\it et al.} (Phys. Rev. B,
preceding paper) we summarize our criticism on their claim of the first
observation of the $M$ series in $\beta$-ZnP$_2$. We support our analysis by
reporting the first observation of inverse {\it polariton} series from the
excitonic molecules selectively generated at ${\bf K}_m \simeq {\bf 0}$ in a
CuCl single crystal. This observation and its explanation within the
bipolariton model complete our proof of the biexcitonic origin of the inverse
series.

23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas