论文标题

在Lindblad耗散动力学框架内的量子ISING模型中润湿临界行为

Wetting critical behavior in the quantum Ising model within the framework of Lindblad dissipative dynamics

论文作者

Artiaco, Claudia, Nava, Andrea, Fabrizio, Michele

论文摘要

我们研究了在平板几何形状中完全连接的量子ISING模型的一阶相变围绕共存区域内的润湿界面的临界行为。为此,我们采用了Lindblad Master方程式形式主义,其中耦合与耗散浴的耦合遗传了温度,而不是像常规CAHN的自由能中的功能参数一样。 Lindblad的方法不仅可以在整个相图中访问量子润湿界面的耗散动力和稳态配置,而且还表明,可以成功利用润湿临界行为来表征相位图作为对竞争阶段自由能的直接评估的替代方法。

We investigate the critical behavior, both in space and time, of the wetting interface within the coexistence region around the first-order phase transition of a fully-connected quantum Ising model in slab geometry. For that, we employ the Lindblad master equation formalism in which temperature is inherited by the coupling to a dissipative bath, rather than being a functional parameter as in the conventional Cahn's free energy. Lindblad's approach gives not only access to the dissipative dynamics and steady-state configuration of the quantum wetting interface throughout the whole phase diagram but also shows that the wetting critical behavior can be successfully exploited to characterize the phase diagram as an alternative to the direct evaluation of the free energies of the competing phases.

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