Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Protection of entanglement for a two-qutrit V-type open system on the
  basis of system-reservoir bound states   In this work, a mechanism for long time protection of entanglement of a
two-qutrit V-type atomic system each of which interacts independently with a
dissipative reservoir is investigated. It is shown that the protection process
is related exclusively on the formation of bound states in the system-reservoir
energy spectrum. It is demonstrated that the degree of boundedness for the
system-reservoir bound states is well-controlled by entering other V-type
qutrits into the reservoirs, and also through the manipulation of the
spontaneously generated interference related to decay channels of the V-type
atoms.

6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol