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This research advances open quantum system simulations by incorporating negative dissipation rates into the GKSL master equation on pre-fault-tolerant devices. By moving beyond standard Markovian approximations, it enables more accurate modeling of non-Markovian processes essential for characterizing intrinsic noise in near-term hardware.

Sources coveringQuantum Zeitgeist, Quantum Computing Report, arXiv

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Negative Dissipation Rates Enabled in Quantum System Simulation

Quantum ZeitgeistAugust 4, 20263 min read

Intrinsic noise in pre-fault-tolerant quantum devices poses a major challenge, and a method is presented for simulating open quantum system dynamics on a quantum computer, including negative dissipation rates in the Gorini–Kossakowski–Sudarshan–Lindblad (GKSL) master equation. This approach goes beyond the standard Markovian approximation, enabling the study of non-Markovian processes within a quantum simulation framework.

Researchers at the Department of Physics and Materials Science, University of Luxembourg have developed a method for simulating open quantum systems that incorporates negative dissipation rates within the Gorini-Kossakowski-Sudarshan-Lindblad master equation. This approach moves beyond standard approximations, allowing controlled study of non-Markovian processes in quantum simulations. Their work utilizes Lyapunov-based feedback to steer quantum systems toward…

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