Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimal quantum phase estimation with generalized multi-component
  Schrodinger cat states   In this paper, we are interested in detecting the presence of a nearby
phase-sensitive object, where traveling light works out under a low-photon loss
rate. Here we investigate the optimal quantum phase estimation with generalized
multi-component Schrodinger cat states. In addition, we show the optimal
conditions of the generalized multi-component cat states for the phase
estimation in a lossless scenario. We then demonstrate that the generalized
multi-component cat states can beat the performances of the NOON and two-mode
squeezed vacuum states in the presence of small loss, while maintaining the
quantum advantage over the standard quantum limit, attainable by coherent
states. Finally, we propose a generation scheme of the entangled
multi-component cat states with current or near-term optical technologies.

8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin