Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coherent exciton dynamics in a dissipative environment maintained by an
  off-resonant vibrational mode   The interplay between an open quantum system and its environment can lead to
both coherent and incoherent behaviour. We explore the extent to which strong
coupling to a single bosonic mode can alter the coherence properties of a
two-level system in a structured environment. This mode is treated exactly,
with the rest of the environment comprising a Markovian bath of bosonic modes.
The strength of the coupling between the two-level system and the single mode
is varied for a variety of different forms for the bath spectral density in
order to assess whether the coherent dynamics of the two-level system are
modified. We find a clear renormalisation of the site population oscillation
frequency that causes an altered interaction with the bath. This leads to
enhanced or reduced coherent behaviour of the two-level system depending on the
form of the spectral density function. We present an intuitive interpretation,
based on an analytical model, to explain the behaviour.

0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci