Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unextendible maximally entangled bases and mutually unbiased bases in
  multipartite systems   We generalize the notion of unextendible maximally entangled basis from
bipartite systems to multipartite quantum systems. It is proved that there do
not exist unextendible maximally entangled bases in three-qubit systems.
Moreover,two types of unextendible maximally entangled bases are constructed in
tripartite quantum systems and proved to be not mutually unbiased.

12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph