QLunch: Anthony Chen

Speaker: Anthony (Chi-Fang) Chen from Caltech

Title: Fast thermalization from the Eigenstate Thermalization Hypothesis

Abstract: Thermalization in open quantum systems has recently attracted attention from quantum computing and quantum chaos. Today, I will first formulate thermalization in terms of Lindbladians and, as a bonus, present a quantum algorithm that efficiently emulates this process and prepares the Gibbs state. Second, we show fast convergence assuming the Eigenstate Thermalization Hypothesis (ETH), which means that the low-energy problem for chaotic Hamiltonians is quantumly easy.