Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Beating the standard sensitivity-bandwidth limit of cavity-enhanced
  interferometers with internal squeezed-light generation   The shot-noise limited peak sensitivity of cavity-enhanced interferometric
measurement devices, such as gravitational-wave detectors, can be improved by
increasing the cavity finesse, even when comparing fixed intra-cavity light
powers. For a fixed light power inside the detector, this comes at the price of
a proportional reduction in the detection bandwidth. High sensitivity over a
large span of signal frequencies, however, is essential for astronomical
observations. It is possible to overcome this standard sensitivity-bandwidth
limit using non-classical correlations in the light field. Here, we investigate
the internal squeezing approach, where the parametric amplification process
creates a non-classical correlation directly inside the interferometer cavity.
We analyse the limits of the approach theoretically, and measure 36% increase
in the sensitivity-bandwidth product compared to the classical case. To our
knowledge this is the first experimental demonstration of an improvement in the
sensitivity-bandwidth product using internal squeezing, opening the way for a
new class of optomechanical force sensing devices.

6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con