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quant-ph2026
Quantum Gibbs sampling through the detectability lemma
Di Fang, Jianfeng Lu, Yu Tong +1
Gibbs state preparation is an important subroutine in quantum computing. In this work we use the detectability lemma to improve Gibbs state preparation. Specifically, we design new…
quant-ph2025
A Randomized Method for Simulating Lindblad Equations and Thermal State Preparation
Hongrui Chen, Bowen Li, Jianfeng Lu +1
We study a qDRIFT-type randomized method to simulate Lindblad dynamics by decomposing its generator into an ensemble of Lindbladians, $\mathcal{L} = \sum_{a \in \mathcal{A}} \mathc…
quant-ph2025
Quantum space-time Poincaré inequality for Lindblad dynamics
Bowen Li, Jianfeng Lu
We investigate the mixing properties of primitive Markovian Lindblad dynamics (i.e., quantum Markov semigroups), where the detailed balance is disrupted by a coherent drift term. I…