Emergence of Synchronization in a Driven-Dissipative Hot Rydberg Vapor

Abstract

We observe synchronization in a thermal ($35--60\text{ }\ifmmode^\circ\else\textdegree\fi{}\mathrm{C}$) atomic (Rb) ensemble driven to a highly excited Rydberg state (principle quantum number $n$ ranging from 43 to 79). Synchronization in this system is unexpected due to the atomic motion; however, we show theoretically that sufficiently strong interactions via a global Rydberg density mean field cause frequency and phase entrainment. The emergent oscillations in the vapor's bulk quantities are detected in the transmission of the probe laser for a two-photon excitation scheme.

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