Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of impurities on Hc2(T) in superconductors without inversion
  symmetry   We calculate the upper critical field, Hc2(T), due to the orbital pair
breaking in disordered superconductors without inversion symmetry. Differences
from the usual centrosymmetric case are highlighted. The linearized gap
equations in magnetic field, with the singlet and triplet pairing channels
mixed by impurity scattering, are solved exactly for a cubic crystal.

37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat