Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Weak Value and Weak Measurements   The weak value of a variable O is a description of an effective interaction
with that variable in the limit of weak coupling. It is particularly important
for a pre- and post-selected quantum system.

2
The categories of this paper are: math
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an