Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Characterization of entanglement using sum uncertainty relations for
  N-level systems   The efficient experimental verification of entanglement requires an
identification of the essential physical properties that distinguish entangled
states from non-entangled states. Since the most characteristic feature of
entanglement is the extreme precision of correlations between spatially
separated systems, we propose a quantitative criterion based on local
uncertainty relations (quant-ph/0212090). Some basic sum uncertainty relations
for N-level systems are introduced and the amount of entanglement that can be
verified by violations of the corresponding local uncertainty limit is
discussed.

18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an