Freiburg 2024 – scientific programme

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A: Fachverband Atomphysik

A 17: Poster III

A 17.12: Poster

Tuesday, March 12, 2024, 17:00–19:00, Tent C

Emergence of Synchronisation in a Driven-Dissipative Hot Rydberg Vapour — •Karen Wadenpfuhl^1,2 and C. Stuart Adams¹ — ¹Joint Quantum Centre (JQC) Durham-Newcastle, Department of Physics, Durham University, Durham, DH1 3LE, United Kingdom — ²Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany

Continuously driven, non-linear systems show interesting behaviours such as bistability and self-oscillations. An interesting question regards the interplay of many self-oscillating entities with coupled dynamics due to an interaction between the individual oscillators. A collective response of a self-oscillating ensemble has been observed in e.g. the applause of audiences, and is theoretically understood within the framework of synchronisation.

Recently, we have observed the emergence of synchronisation in a driven-dissipative hot Rydberg vapour [1]. Synchronisation occurs in a strongly-driven three-level ladder scheme in Rb where we couple the intermediate 5P_3/2 state to a Rydberg state. The synchronised state manifests as oscillations of the transmission of the probe beam through the atomic vapour. The wide tunability of the system parameters as well as fast oscillation frequencies on the order of 10 kHz allow for an exploration of the synchonisation transition over a large parameter space and with many ciooupled oscillators.

[1] K. Wadenpfuhl and C. S. Adams, Emergence of Synchronization in a Driven-Dissipative Hot Rydberg Vapor, PRL 131, 143002 (2023)

Keywords: synchronisation transition; Rydberg gases; coupled oscillators; nonlinear dynamics