Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Perfect quantum excitation energy transport via single edge perturbation
  in a complete network   We consider quantum excitation energy transport (EET) in a network of
two-state nodes in the Markovian approximation by employing the Lindblad
formulation. We find that EET from an initial site, where the excitation is
inserted to the sink, is generally inefficient due to the inhibition of
transport by localization of the excitation wave packet in a symmetric,
fully-connected network. We demonstrate that the EET efficiency can be
significantly increased up to %100 by perturbing hopping transport between the
initial node and the one connected directly to the sink, while the rate of
energy transport is highest at a finite value of the hopping parameter. We also
show that prohibiting hopping between the other nodes which are not directly
linked to the sink does not improve the efficiency. We show that external
dephasing noise in the network plays a constructive role for EET in the
presence of localization in the network, while in the absence of localization
it reduces the efficiency of EET.

9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom