Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Enhanced Classical Sensor Networks   The quantum enhanced classical sensor network consists of $K$ clusters of
$N_e$ entangled quantum states that have been trialled $r$ times, each feeding
into a classical estimation process. Previous literature has shown that each
cluster can {ideally} achieve an estimation variance of $1/N_e^2r$ for
sufficient $r$. We begin by deriving the optimal values for the minimum mean
squared error of this quantum enhanced classical system. We then show that if
noise is \emph{absent} in the classical estimation process, the mean estimation
error will decay like $\Omega(1/KN_e^2r)$. However, when noise is
\emph{present} we find that the mean estimation error will decay like
$\Omega(1/K)$, so that \emph{all} the sensing gains obtained from the
individual quantum clusters will be lost.

18
The categories of this paper are: econ
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn