Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonlocal magnon entanglement generation in coupled hybrid cavity systems   We investigate dynamical generation of macroscopic nonlocal entanglements
between two remote massive magnon-superconducting-circuit hybrid systems. Two
fiber-coupled microwave cavities are employed to serve as an interaction
channel connecting two sets of macroscopic hybrid units each containing a
magnon (hosted by a Yttrium-Iron-Garnet sphere) and a superconducting-circuit
qubit. Surprisingly, it is found that stronger coupling does not necessarily
mean faster entanglement generation. The proposed hybrid system allows the
existence of an optimal fiber coupling strength that requests the shortest
amount of time to generate a systematic maximal entanglement. Our theoretical
results are shown to be within the scope of specific parameters that can be
achieved with current technology. The noise effects on the implementation of
systems are also treated in a general environment suggesting the robustness of
entanglement generation. Our discrete-variable qubit-like entanglement theory
of magnons may lead to direct applications in various quantum information
tasks.

37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg