Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-Markovian quantum correlations of two-qubit system in equilibrium
  and nonequilibrium bosonic environments   The quantum correlations of the two-qubit system are studied in different
bosonic reservoirs by the tensor network algorithm. Both equilibrium and
nonequilibrium scenarios are discussed. The non-Markov effect can improve the
survival time of the quantum correlations significantly and weaken the
decoherence effect. The non-Markovian dynamics with existing memory can lead to
the entanglement rebirth in certain scenarios in contrast to the eventual
entanglement decay or death under the memoryless Markovian case. In particular,
the system in the sub-Ohmic reservoirs can reach steady state the quickest. The
quantum correlations are more robust to the changes in the temperature or the
temperature difference in the super-Ohmic reservoirs. At fixed times, we find
that the memory can boost the correlations. However, more memory is not always
better. Too much memory may also cause the decoherence.

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The categories of this paper are: hep-lat
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The categories of this paper are: comp-gas
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
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The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci