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@ARTICLE{Zhao:817802,
      author       = {Zhao, P. and De Raedt, H. and Miyashita, S. and Jin, F. and
                      Michielsen, K.},
      title        = {{D}ynamics of open quantum spin systems: {A}n assessment of
                      the quantum master equation approach},
      journal      = {Physical review / E},
      volume       = {94},
      number       = {2},
      issn         = {1063-651X},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2016-04441},
      pages        = {022126},
      year         = {2016},
      abstract     = {Data of the numerical solution of the time-dependent
                      Schrödinger equation of a system containing one spin-12
                      particle interacting with a bath of up to 32 spin-12
                      particles is used to construct a Markovian quantum master
                      equation describing the dynamics of the system spin. The
                      procedure of obtaining this quantum master equation, which
                      takes the form of a Bloch equation with time-independent
                      coefficients, accounts for all non-Markovian effects
                      inasmuch the general structure of the quantum master
                      equation allows. Our simulation results show that, with a
                      few rather exotic exceptions, the Bloch-type equation with
                      time-independent coefficients provides a simple and accurate
                      description of the dynamics of a spin-12 particle in contact
                      with a thermal bath. A calculation of the coefficients that
                      appear in the Redfield master equation in the Markovian
                      limit shows that this perturbatively derived equation
                      quantitatively differs from the numerically estimated
                      Markovian master equation, the results of which agree very
                      well with the solution of the time-dependent Schrödinger
                      equation.},
      cin          = {JSC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {511 - Computational Science and Mathematical Methods
                      (POF3-511)},
      pid          = {G:(DE-HGF)POF3-511},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000381607300002},
      pubmed       = {pmid:27627265},
      doi          = {10.1103/PhysRevE.94.022126},
      url          = {https://juser.fz-juelich.de/record/817802},
}