Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universal behavior of the geometric entanglement measure of many-qubit W
  states   We show that when N>>1 the geometric entanglement measure of general N-qubit
W states, except maximally entangled W states, is a one-variable function and
depends only on the Bloch vector with the minimal z component. Hence one can
prepare a W state with the required maximal product overlap by altering the
Bloch vector of a single qubit. Next we compute analytically the geometric
measure of large-scale W states by describing these systems in terms of very
few parameters. The final formula relates two quantities, namely the maximal
product overlap and the Bloch vector, that can be easily estimated in
experiments.

31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con