Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Model discrimination for dephasing two-level systems   The problem of model discriminability and parameter identifiability for
dephasing two-level systems subject to Hamiltonian control is studied. Analytic
solutions of the Bloch equations are used to derive explicit expressions for
observables as functions of time for different models. This information is used
to give criteria for model discrimination and parameter estimation based on
simple experimental paradigms.

37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
23
The categories of this paper are: solv-int