Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The von Neumann entropy and information rate for ideal quantum Gibbs
  ensembles   A model of a quantum information source is proposed, based on the Gibbs
ensemble of ideal (free) particles (bosons or fermions). We identify the
(thermodynamic) von Neumann entropy as the information rate and establish the
classical Lempel--Ziv universal coding algorithm in Grassberger's form for such
a source. This generalises the Schumacher theorem to the case of non-IID
qubits.

23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat