Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 4.2 K Sensitivity-Tunable Radio Frequency Reflectometry of a Physically
  Defined P-channel Silicon Quantum Dot   We demonstrate the measurement of p-channel silicon-on-insulator quantum dots
at liquid helium temperatures by using a radio frequency (rf) reflectometry
circuit comprising of two independently tunable GaAs varactors. This
arrangement allows observing Coulomb diamonds at 4.2\,K under nearly best
matching condition and optimal signal-to-noise ratio. We also discuss the rf
leakage induced by the presence of the large top gate in MOS nanostructures and
its consequence on the efficiency of rf-reflectometry. These results open the
way to fast and sensitive readout in multi-gate architectures, including
multi-qubit platforms.

10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an