Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum coherence of an orbital angular momentum multiplexed
  continuous-variable entangled state   Orbital angular momentum (OAM) multiplexed entangled state is an important
quantum resource for high dimensional quantum information processing. In this
paper, we experimentally quantify quantum coherence of OAM multiplexed
continuous-variable (CV) entangled state and characterize its evolution in a
noisy environment. We show that the quantum coherence of the OAM multiplexed CV
entangled state carrying topological charges $l=1$ and $l=2$ are the same as
that of the Gaussian mode with $l=0$ in a noisy channel. Furthermore, we show
that the quantum coherence of OAM multiplexed entangled state is robust to
noise, even though the sudden death of entanglement is observed. Our results
provide reference for applying quantum coherence of OAM multiplexed CV
entangled state in a noisy environment.

8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio