Sep 20 – 25, 2026
University of Graz
Europe/Vienna timezone

Non-reciprocal interactions between a mechanical oscillator and an atomic spin system

Sep 25, 2026, 11:15 AM
15m
HS 15.12 (University of Graz)

HS 15.12

University of Graz

15 - RESOWI C, 1st floor
3) Contributed talk M29 - Nanomechanical, Electromechanical, Optomechanical and Levitated Systems Mini-Colloquium

Speaker

Gian-Luca Schmid

Description

Non-reciprocal interactions violate the action-reaction symmetry of Newton’s third law, giving rise to phenomena such as amplification, synchronization, and spontaneous parity-time symmetry breaking. In quantum systems, non-reciprocal interactions have recently attracted significant interest as a new tool to engineer functionality, with potential for sensing and signal processing applications. Here we report experiments on non-reciprocal interactions in a hybrid mechanical-atomic system coupled by light. We observe spontaneous coupled oscillations, two-mode squeezing dynamics, limit cycles and phase synchronization of the two systems.

Authors

Dr Alvaro de Melo Mr Andreas Weber Gian-Luca Schmid Prof. Philipp Treutlein

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