Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Information States in Control Theory: From Classical to Quantum   This paper is concerned with the concept of {\em information state} and its
use in optimal feedback control of classical and quantum systems. The use of
information states for measurement feedback problems is summarized.
Generalization to fully quantum coherent feedback control problems is
considered.

18
The categories of this paper are: econ
19
The categories of this paper are: eess
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int