期刊
PHYSICAL REVIEW LETTERS
卷 122, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.040603
关键词
-
资金
- National Science Foundation (NSF)
- Center for Ultracold Atoms
- Air Force Office of Scientific Research via the MURI
- Vannevar Bush Faculty Fellowship
- NSF through a grant for the Institute for Theoretical Atomic, Molecular, and Optical Physics at Harvard University
- Gordon and Betty Moore Foundation EPiQS Initiative [GBMF4306]
- Smithsonian Astrophysical Observatory
We analyze quantum dynamics of strongly interacting, kinetically constrained many-body systems. Motivated by recent experiments demonstrating surprising long-lived, periodic revivals after quantum quenches in Rydberg atom arrays, we introduce a manifold of locally entangled spin states, representable by low-bond dimension matrix product states, and derive equations of motion for them using the time-dependent variational principle. We find that they feature isolated, unstable periodic orbits, which capture the recurrences and represent nonergodic dynamical trajectories. Our results provide a theoretical framework for understanding quantum dynamics in a class of constrained spin models, which allow us to examine the recently suggested explanation of quantummany-body scarring [Nat. Phys. 14, 745 (2018)], and establish a possible connection to the corresponding phenomenon in chaotic single-particle systems.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据