Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Microwave control of the interaction between two optical photons   A microwave field is used to control the interaction between pairs of optical
photons stored in highly excited collective states (Rydberg polaritons). We
show that strong dipole-dipole interactions induced by the microwave field
destroy the coherence of polariton modes with more than one Rydberg excitation.
Consequently single-polariton modes, which correspond to single stored photons,
are preferentially retrieved from the sample. Measurements of the photon
statistics of the retrieved light field also reveal non-trivial propagation
dynamics of the interacting polaritons.

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The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg