Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Primary tunnel junction thermometry   We describe the concept and experimental demonstration of primary thermometry
based on a four probe measurement of a single tunnel junction embedded within
four arrays of junctions. We show that in this configuration random sample
specific and environment-related errors can be avoided. This method relates
temperature directly to Boltzmann constant, which will form the basis of the
definition of temperature and realization of official temperature scales in the
future.

20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg