Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unconventional quantum sound-matter interactions in
  spin-optomechanical-crystal hybrid systems   We predict a set of unusual quantum acoustic phenomena resulting from
sound-matter interactions in a fully tunable solid-state platform, in which an
array of solid-state spins in diamond are coupled to quantized acoustic waves
in a one-dimensional (1D) optomechanical crystal. We find that, by a spatially
varying laser drive that introduces a position-dependent phase in the
optomechanical interaction, the mechanical band structure can be tuned in situ,
consequently leading to unconventional quantum sound-matter interactions. We
show that quasi-chiral sound-matter interactions can occur, with tunable ranges
from bidirectional to quasi-unidirectional, when the spins are resonant with
the bands. When the solid-state spins'frequency lies within the acoustic
band-gap, we demonstrate the emergence of an exotic polariton bound state,
which can mediate long-range tunable, odd-neighbor and complex spin-spin
interactions. This work expands the present exploration of quantum phononics
and can have wide applications in quantum simulation and quantum information
processing.

21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
1
The categories of this paper are: cs
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas