Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Classifying directional Gaussian quantum entanglement, EPR steering and
  discord   Quantum discord quantifies how much Alice's system is disrupted after a
measurement is performed on Bob's. Conceptually, this behavior acts the same
way as quantum steering and we find that the discord grows with better steering
from Bob to Alice. Using Venn diagrams, the relations between the different
classes of Gaussian continuous variable entanglement and the links to discord
for the squeezed-thermal states are established. We identify a directional
quantum teleportation task for each class of squeezed-thermal state
entanglement, and establish a unified signature for quantum steering,
entanglement and discord beyond entanglement. Quantum steering and discord are
promising candidates to quantify the potential of the directional quantum tasks
where Alice and Bob possess asymmetrically noisy channels.

12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex