Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Parameter estimation of wormholes beyond the Heisenberg limit   We propose to exploit the quantum properties of nonlinear media to estimate
the parameters of massless wormholes. The spacetime curvature produces a change
in length with respect to Minkowski spacetime that can be estimated in
principle with an interferometer. We use quantum metrology techniques to show
that the sensitivity is improved with nonlinear media and propose a nonlinear
Mach-Zehnder interferometer to estimate the parameters of massless wormholes
that scales beyond the Heisenberg limit.

3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ