Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Counterpropagating continuous variable entangled states in lossy
  coupled-cavity optical waveguides   We present an integrated source of counterpropagating entangled states based
on a coupled resonator optical waveguide that is pumped by a classical pulsed
source incident from above the waveguide. We investigate theoretically the
generation and propagation of continuous variable entangled states in this
coupled-cavity system in the presence of intrinsic loss. Using a tight-binding
approximation, we derive analytic time-dependent expressions for the number of
photons in each cavity, as well as for the correlation variance between the
photons in different pairs of cavities, to evaluate the degree of quantum
entanglement. We also derive simple approximate expressions for these
quantities that can be used to guide the design of such systems, and discuss
how pumping configurations and physical properties of the system affect the
photon statistics and the degree of quantum correlation.

36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an