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quant-ph2023★ 5 cited
About the performance of perturbative treatments of the spin-boson dynamics within the hierarchical equations of motion approach
Meng Xu, Joachim Ankerhold
The hierarchical equations of motion (HEOM) provide a numerically exact approach for simulating the dynamics of open quantum systems coupled to a harmonic bath. However, its applic…
quant-ph2023★ 7 cited
A Universal Framework for Quantum Dissipation:Minimally Extended State Space and Exact Time-Local Dynamics
Meng Xu, Vasilii Vadimov, Malte Krug +2
The dynamics of open quantum systems is formulated in a minimally extended state space comprising the degrees of freedom of a system of interest and a finite set of non-unitary, pu…