论文标题
动力学约束Rydberg旋转系统中的振动敷料
Vibrational dressing in Kinetically Constrained Rydberg Spin Systems
论文作者
论文摘要
具有动力学约束的量子自旋系统已成为探索多体系统中集体动力学行为的范式。在这里，我们讨论了一个促进的旋转系统，该系统受到Rydberg量子模拟器实现的最新进展的启发。该平台允许控制和研究促进动力学与旋转自由度与晶格振动的耦合之间的相互作用。开发一个最小的模型，我们表明这导致形成了偏光型准粒子激发，这些激发是由由声子穿着的多体旋转状态形成的。我们详细研究了这些准粒子的特性，例如它们的分散关系，有效的质量和准粒子重量。 Rydberg Lattice量子模拟器特别适合研究此声子穿刺的动力学，因为它们夸大的长度尺度允许对旋转和声子自由度的位置分辨监测。
Quantum spin systems with kinetic constraints have become paradigmatic for exploring collective dynamical behaviour in many-body systems. Here we discuss a facilitated spin system which is inspired by recent progress in the realization of Rydberg quantum simulators. This platform allows to control and investigate the interplay between facilitation dynamics and the coupling of spin degrees of freedom to lattice vibrations. Developing a minimal model, we show that this leads to the formation of polaronic quasiparticle excitations which are formed by many-body spin states dressed by phonons. We investigate in detail the properties of these quasiparticles, such as their dispersion relation, effective mass and the quasiparticle weight. Rydberg lattice quantum simulators are particularly suited for studying this phonon-dressed kinetically constrained dynamics as their exaggerated length scales permit the site-resolved monitoring of spin and phonon degrees of freedom.
