Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Propagative oscillations in co-directional polariton waveguide couplers   We report on novel exciton-polariton routing devices created to study and
purposely guide light-matter particles in their condensate phase. In a
co-directional coupling device, two waveguides are connected by a partially
etched section which facilitates tunable coupling of the adjacent channels.
This evanescent coupling of the two macroscopic wavefunctions in each waveguide
reveals itself in real space oscillations of the condensate. This
Josephson-like oscillation has only been observed in coupled polariton traps so
far. Here, we report on a similar coupling behavior in a controllable,
propagative waveguide-based design. By controlling the gap width, channel
length or the propagation energy, the exit port of the polariton flow can be
chosen. This co-directional polariton device is a passive and scalable coupler
element that can serve in compact, next generation logic architectures.

29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio