Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Vector Electrometry in a Wide-Gap Semiconductor Device Using a Spin
  Ensemble Quantum Sensor   Nitrogen-vacancy (NV) centers in diamond work as a quantum electrometer.
Using an ensemble state of NV centers, we propose vector electrometry and
demonstrate measurements in a diamond electronic device. A transverse electric
field applied to the N-V axis under a high voltage was measured while applying
a transverse magnetic field. The response of the energy level shift against the
electric field was significantly enhanced compared with that against an axial
magnetic field. Repeating the measurement of the transverse electric field for
multiple N-V axes, we obtained the components of the electric field generated
in the device.

1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th