Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Positioning Nuclear Spins in Interacting Clusters for Quantum
  Technologies and Bio-imaging   We propose a method to measure the hyperfine vectors between a
nitrogen-vacancy (NV) center and an environment of interacting nuclear spins.
Our protocol enables the generation of tunable electron-nuclear coupling
Hamiltonians while suppressing unwanted inter-nuclear interactions. In this
manner, each nucleus can be addressed and controlled individually thereby
permitting the reconstruction of the individual hyperfine vectors. With this
ability the 3D-structure of spin ensembles and spins in bio-molecules can be
identified without the necessity of varying the direction of applied magnetic
fields. We demonstrate examples including the complete reconstruction of an
interacting spin cluster in diamond and 3D imaging of all the nuclear spins in
a bio-molecule.

20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex