Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Long-lifetime Polariton BEC in a Microcavity with an Embedded Quantum
  Well and Graphene   We study the propagation of a Bose-Einstein condensate (BEC) of long-lifetime
exciton polaritons in a high-quality microcavity with an embedded semiconductor
quantum well or a graphene layer using the Gross-Pitaevskii equation. It is
shown that in these heterostructures the BEC of the long-lifetime polaritons
can propagate over the distance up to 0.5 mm. The obtained results are
consistent with the recent experimental observations for GaAs/AlGaAs
microcavity. It is demonstrated that the BEC density in a polariton trace in a
microcavity with embedded graphene at large distances from the excitation spot
is higher for the microcavity with higher dielectric constant. It is also
predicted that the propagation of a polariton BEC in a microcavity with
graphene is dynamically tunable by changing the gap energy, that makes it
potentially useful for applications in integrated optical circuits.

2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin