Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Momentum and Uncertainty Relations in the Entropic Approach to Quantum
  Theory   In the Entropic Dynamics (ED) approach to quantum theory the particles have
well-defined positions but since they follow non differentiable Brownian
trajectories they cannot be assigned an instantaneous momentum. Nevertheless,
four different notions of momentum can be usefully introduced. We derive
relations among them and the corresponding uncertainty relations. The main
conclusion is that momentum is a statistical concept: in ED the momenta are not
properties of the particles; they are attributes of the probability
distributions.

28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th