Model reduction for quantum systems: Discrete-time quantum walks and open Markov dynamics

T Grigoletto, F Ticozzi - arXiv preprint arXiv:2307.06319, 2023 - arxiv.org
A general approach to obtain reduced models for a wide class of discrete-time quantum
systems is proposed. The obtained models not only reproduce exactly the output of a given …

Exact Model Reduction for Continuous-Time Open Quantum Dynamics

T Grigoletto, Y Tao, F Ticozzi, L Viola - arXiv preprint arXiv:2412.05102, 2024 - arxiv.org
We consider finite-dimensional many-body quantum systems described by time-
independent Hamiltonians and Markovian master equations, and present a systematic …