Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum correlation enhanced weak field detection in optomechanical
  system   We propose a theoretical scheme to enhance the signal-to-noise ratio in
ultrasensitive detection with the help of quantum correlation. By introducing
the auxiliary oscillator and treated as an added probe for weak field
detection, the additional noise can be greatly suppressed and the measurement
accuracy may even break the standard quantum limit. We use the magnetic field
as an example to exhibit the detection capability of our scheme. The result
show that, comparing with the traditional detection protocol, our scheme can
have higher signal-to-noise ratio and better detection accuracy. Furthermore,
the signal intensity detection curve shows a good linearity. Our results
provide a promising platform for reducing the additional noise by utilizing
quantum correlation in ultrasensitive detection.

12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
18
The categories of this paper are: econ