Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Paramagnetic Reentrance Effect in NS Proximity Cylinders   A scenario for the unusual paramagnetic reentrance behavior at ultra-low
temperatures in Nb-Ag, Nb-Au, and Nb-Cu cylinders is presented. For the
diamagnetic response down to temperatures of the order 15 mK, the standard
theory (quasi-classical approximation) for superconductors appears to work very
well, assuming that Ag, Au, and Cu remain in the normal state except for the
proximity-induced superconductivity. Here it is proposed that these noble
metals may become p-wave superconductors with a transition temperature of order
10 mK. Below this temperature, p-wave triplet superconductivity emerges around
the periphery of the cylinder. The diamagnetic current flowing in the periphery
is compensated by a quantized paramagnetic current in the opposite direction,
thus providing a simple explanation for the observed increase in the
susceptibility at ultra-low temperatures.

12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics