Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sudden death and birth of entanglement beyond the Markovian
  approximation   We investigate the entanglement dynamics of two initially entangled qubits
interacting independently with two uncorrelated reservoirs beyond the Markovian
approximation. Quite different from the Markovian reservoirs [C. E. Lopez et
al., Phys. Rev. Lett. 101 (2008) 080503], we find that entanglement sudden
birth (ESB) of the two reservoirs occurs without certain symmetry with respect
to the entanglement sudden death (ESD) of the two qubits. A phenomenological
interpretation of entanglement revival is also given.

18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics