Variational perturbation theory extends the radius of convergence for steady-state calculations in open quantum systems and replaces pseudo-inverse computations with LU decomposition or Krylov recycling.
Compared to the previ- ous case, we consider a larger value ofκ/K, showcasing the efficiency of VPT in a more dissipative configura- tion
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Variational Perturbation Theory in Open Quantum Systems for Efficient Steady State Computation
Variational perturbation theory extends the radius of convergence for steady-state calculations in open quantum systems and replaces pseudo-inverse computations with LU decomposition or Krylov recycling.