Dynamical phases in a one-dimensional chain of Heterospecies Rydberg atoms with next-nearest neighbor interactions

TL;DR

This paper theoretically explores the dynamical phases of a one-dimensional chain of two-species Rydberg atoms, revealing complex behaviors and chaos influenced by interactions and initial conditions.

Contribution

It introduces a mean-field model predicting diverse dynamical phases and analyzes the impact of next-nearest neighbor interactions on these phases.

Findings

Multiple dynamical phases predicted in the parameter space

Presence of complex chaotic phases sensitive to initial conditions

Next-nearest neighbor interactions significantly alter phase behavior

Abstract

We theoretically investigate the dynamical phase diagram of a one-dimensional chain of laser-excited two-species Rydberg atoms. The existence of a variety of unique dynamical phases in the experimentally-achievable parameter region is predicted under the mean-field approximation, and the change of those phases when the effect of the next-nearest neighbor interaction is included is further discussed. In particular we find the competition of the strong Rydberg-Rydberg interactions and the optical excitation imbalance can lead to the presence of complex multiple chaotic phases, which are highly sensitive to the initial Rydberg-state population and the strength of the next-nearest neighbor interactions.