Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Detecting quantum-coherent nanomechanical oscillations using the
  current-noise spectrum of a double quantum dot   We consider a nanomechanical resonator coupled to a double quantum dot. We
demonstrate how the finite-frequency current noise spectrum through the double
quantum dot can be used to distinguish classical and quantum behaviour in the
nearby nano-electromechanical resonator. We also show how the full frequency
current noise spectrum gives important information on the combined double
quantum dot-resonator energy spectrum. Finally, we point out regimes where the
quantum state of the resonator becomes squeezed, and also examine the
cross-correlated electron-phonon current noise.

17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph