论文标题
关于中膜熔化的量子信息的观点
A quantum information perspective on meson melting
论文作者
论文摘要
我们建议使用量子信息概念来表征高温下非扰动结合状态的热诱导融化。我们应用张量网络在Ising量子场理论中的静态和动力学设置中调查这一想法，其中界面状态被限制为fermion对 - 介子。在热状态第二Rényi熵的温度依赖性中确定了介子熔化的平衡特征，该温度依赖性从指数到幂律缩放。出于平衡，我们将其确定为相关的特征，从振荡器到热淬灭后反射熵的线性生长行为的过渡。这些分析更广泛地应用，这带来了描述量子多体和高能物理学中中膜内现象的新方法。
We propose to use quantum information notions to characterize thermally induced melting of nonperturbative bound states at high temperatures. We apply tensor networks to investigate this idea in static and dynamical settings within the Ising quantum field theory, where bound states are confined fermion pairs - mesons. An equilibrium signature of meson melting is identified in the temperature dependence of the thermal-state second Rényi entropy, which varies from exponential to power-law scaling. Out of equilibrium, we identify as the relevant signature the transition from an oscillatory to a linear growing behavior of reflected entropy after a thermal quench. These analyses apply more broadly, which brings new ways of describing in-medium meson phenomena in quantum many-body and high-energy physics.
