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Author

Zhen-Ning Cai

2 papers indexed here

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Preprint Oct 2026

Quantum Simulation of Non-Markovian Open Quantum Systems via Low-Rank Kernel Compression and Coupling Dilution

We present an error-controlled framework for the quantum simulation of non-Markovian open-system dynamics in Gaussian environments. For a system coupled linearly to a Gaussian environment with zero mean, the bath's influence on the reduced dynamics is completely determined by its two-time correlation kernel. This allow...

Heng-Zhun Chen, Zhen-Ning Cai · 0 citations
Preprint Oct 2026

A deterministic polynomial chaos Galerkin method for non-Markovian quantum state diffusion

Developing general-purpose numerical methods for non-Markovian quantum state diffusion has long been a challenge in the simulation of open quantum systems. This paper proposes a deterministic polynomial chaos Galerkin method, which is easy to implement, accurate, and efficient. By combining a low-rank decomposition of...

Quan-Hui Zhu, Zhen-Ning Cai · 0 citations

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