Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fidelity based unitary operation-induced quantum correlation for
  continuous-variable systems   We propose a measure of nonclassical correlation $N_{\mathcal F}^{\mathcal
G}$ in terms of local Gaussian unitary operations based on square of the
fidelity $\mathcal F$ for bipartite continuous-variable systems. This quantity
is easier to calculate or estimate and is a remedy for the local ancilla
problem associated with the geometric measurement-induced nonlocality. A simple
computation formula of $N_{\mathcal F}^{\mathcal G}$ for any $(1+1)$-mode
Gaussian states is presented and an estimation of $N_{\mathcal F}^{\mathcal G}$
for any $(n+m)$-mode Gaussian states is given. For any $(1+1)$-mode Gaussian
states, $N_{\mathcal F}^{\mathcal G}$ does not increase after performing a
local Gaussian channel on the unmeasured subsystem. Comparing $N_{\mathcal
F}^{\mathcal G}(\rho_{AB})$ in scale with other quantum correlations such as
Gaussian geometric discord for two-mode symmetric squeezed thermal states
reveals that $N_{\mathcal F}^{\mathcal G}$ is much better in detecting quantum
correlations of Gaussian states.

22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an