论文标题
有限时间驾驶时的非高斯工作统计
Non-Gaussian work statistics at finite-time driving
论文作者
论文摘要
我们研究通过有限时间通过量子相变驱动的多体系统的工作分布的性能。我们专注于分布的非高斯性，我们通过两个定量指标来表征这些分布的特征：偏度和负yen。特别是，我们专注于量子模型，并表明坡道的有限持续时间增强了有限尺寸系统的分布的非高斯性。通过检查完整分布的特征，我们观察到突然的淬灭和绝热限制之间存在明显的中间状态，在这种极限和绝热限制中，分布变得越来越偏斜。
We study properties of the work distribution of a many-body system driven through a quantum phase transition in finite time. We focus on the non-Gaussianity of the distribution, which we characterize through two quantitative metrics: skewness and negentropy. In particular, we focus on the quantum Ising model and show that a finite duration of the ramp enhances the non-Gaussianity of the distribution for a finite size system. By examining the characteristics of the full distribution, we observe that there is a clear intermediate regime between the sudden quench and adiabatic limits, where the distribution becomes increasingly skewed.
