Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonlocal memory effects in the dynamics of open quantum systems   We explore the possibility to generate nonlocal dynamical maps of an open
quantum system through local system-environment interactions. Employing a
generic decoherence process induced by a local interaction Hamiltonian, we show
that initial correlations in a composite environment can lead to a nonlocal
open system dynamics which exhibits strong memory effects although the local
dynamics is Markovian. In a model of two entangled photons interacting with two
dephasing environments we find a direct connection between the degree of memory
effects and the amount of correlations in the initial environmental state. The
results demonstrate that, contrary to conventional wisdom, enlarging an open
system can change the dynamics from Markovian to non-Markovian.

37
The categories of this paper are: supr-con
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an