Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite-temperature decoherence of spin states in a
  $\texttt{\{}\emph{Cu}_3\texttt{\}}$ single molecular magnet   We investigate the quantum evolution of spin states of a single molecular
magnet in a local electric field. The decoherence of a
$\texttt{\{}\emph{Cu}_3\texttt{\}}$ single molecular magnet weakly coupled to a
thermal bosonic environment can be analyzed by the spin-boson model. Using the
finite-temperature time-convolutionless quantum master equation, we obtain the
analytical expression of the reduced density matrix of the system in the
secular approximation. The suppressed and revived dynamical behavior of the
spin states are presented by the oscillation of the chirality spin polarization
on the time scale of the correlation time of the environment. The quantum
decoherence can be effectively restrained with the help of the manipulation of
local electric field and the environment spectral density function. Under the
influence of the dissipation, the pointer states measured by the von Neumann
entropy are calculated to manifest the entanglement property of the
system-environment model.

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The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
3
The categories of this paper are: physics