Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A perspective on hybrid quantum opto- and electromechanical systems   Quantum opto- and electromechanical systems interface mechanical motion with
the electromagnetic modes of optical resonators and microwave circuits. The
capabilities and promise of these hybrid devices have been showcased through a
variety of recent experimental advances that demonstrated exquisite control
over the quantum state of solid-state mechanical objects. In this perspective,
we offer an overview of the current state, as well as an outlook of the future
directions, challenges, and opportunities for this growing field of research.
We focus in particular on the prospects for ground state cooling of mechanical
modes and their use in quantum circuits, transducers, and networks.

6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci