English

Algebraic law of local correlations in a driven Rydberg atomic system

Quantum Gases 2025-12-16 v2 Quantum Physics

Abstract

Understanding the mechanism behind the buildup of inner correlations is crucial for studying nonequilibrium dynamics in complex, strongly interacting many-body systems. Here we investigate both analytically and numerically the buildup of antiferromagnetic (AF) correlations in a dynamically tuned Ising model with various geometries, realized in a Rydberg atomic system. Through second-order Magnus expansion (ME), we demonstrate quantitative agreement with numerical simulations for diverse configurations including 2×n2 \times n lattice and cyclic lattice with a star. We find that the AF correlation magnitude at fixed Manhattan distance obeys a universal superposition principle: It corresponds to the algebraic sum of contributions from all shortest paths. This superposition law remains robust against variations in path equivalence, lattice geometries, and quench protocols, establishing a new paradigm for correlation propagation in quantum simulators.

Keywords

Cite

@article{arxiv.2412.03114,
  title  = {Algebraic law of local correlations in a driven Rydberg atomic system},
  author = {X. Wang and X. F. Wu and B. Yang and B. Zhang and B. Xiong},
  journal= {arXiv preprint arXiv:2412.03114},
  year   = {2025}
}

Comments

15+15 pages, 7+1 figures