Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of bath temperature on the decoherence of quantum dissipative
  systems   We report an anomalous decoherence phenomenon of a quantum dissipative system
in the framework of a stochastic decoupling scheme along with a hierarchical
equations-of-motion formalism without the usual Born-Markov or weak coupling
approximations. It is found that the decoherence of a two-qubit spin-boson
model can be reduced by increasing the bath temperature in strong-coupling
regimes. For the weak-coupling situation, we find that the bath temperature may
enhance the decoherence. This result is contrary to the common recognition that
a higher bath temperature always induces a more severe decoherence and suggests
that a decoherence dynamical transition occurs in this two-qubit spin-boson
model. We also demonstrate that the critical transition point can be
characterized by the behavior of the frequency spectrum of the quantum
coherence indicator.

11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys