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Synchronization driven acoustics: The nonlinear scattering of a self-oscillating meta-atom
Alexander K. Stoychev, Xinxin Guo, Ulrich Kuhl +1
In this study we demonstrate a self-oscillating acoustic meta-atom functioning as an amplifying transistor, where a steady external flow serves as a control signal to switch betwee…
Synchronization driven reciprocity breaking
Alexander K. Stoychev, Ulrich Kuhl, Nicolas Noiray
This study introduces a novel method to break wave transmission reciprocity by leveraging the synchronization of self-oscillators. An experimental demonstration with aeroacoustic c…
Symmetry violation-driven hysteresis loops as measurands for noise-resilient sensors
Arunn Suntharalingam, Lucas Fernández-Alcázar, Pablo Fabián Wagner-Boián +3
Sublinear resonant deviations from an exceptional point degeneracy (EPD) has been recently promoted as a sensing scheme. However, there is still an ongoing debate whether the sensi…
Spin resonance without a spin: A microwave analog
Tobias Hofmann, Finn Schmidt, Hans-Jürgen Stöckmann +1
An analog of nuclear magnetic resonance is realized in a microwave network with symplectic symmetry. The network consists of two identical subgraphs coupled by a pair of bonds with…
Towards a Broad-Band Coherent Perfect Absorption in systems without Scale-Invariance
Suwun Suwunnarat, Yaqian Tang, Mattis Reisner +3
We experimentally and theoretically challenge the concept of coherent perfect absorption (CPA) as a narrow frequency resonant mechanism associated with scattering processes that re…
Implementing Non-Universal Features with a Random Matrix Theory Approach: Application to Space-to-Configuration Multiplexing
Philipp del Hougne, Dmitry V. Savin, Olivier Legrand +1
We consider the efficiency of multiplexing spatially encoded information across random configurations of a metasurface-programmable chaotic cavity in the microwave domain. The dist…