Shapiro Resonances in Mechanically Modulated Exciton-Polariton Josephson Junctions
Phys. Rev. Lett. 136, 026901 – Published 15 January, 2026
DOI: https://doi.org/10.1103/kgz6-g8x3
Abstract
We experimentally investigate the dynamics of Josephson junctions between two confined exciton-polariton condensates when periodically modulated via self-induced GHz mechanical oscillations. We show that the energy detuning between the condensates displays a plateau behavior akin to the Shapiro steps when it matches the modulation quantum. At the step, massive tunneling of particles occurs, featuring Shapiro-like spikes with an asymmetric shape determined by the nonlinearities and gain present in this quantum driven-dissipative system.
